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	<title>楕円チェーンリング  |  素人から素人のための自転車遊</title>
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	<description>Enjoy 自転車 旅 グルメ キャンプ アフィリエイト</description>
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		<title>超激坂を登るためのギヤ比等カスタムを考える【ミニベロ】</title>
		<link>https://2021tomoziblog.com/%e8%b6%85%e6%bf%80%e5%9d%82%e3%82%92%e7%99%bb%e3%82%8b%e3%81%9f%e3%82%81%e3%81%ae%e3%82%ae%e3%83%a4%e6%af%94%e7%ad%89%e3%82%ab%e3%82%b9%e3%82%bf%e3%83%a0%e3%82%92%e8%80%83%e3%81%88%e3%82%8b%e3%80%90/</link>
					<comments>https://2021tomoziblog.com/%e8%b6%85%e6%bf%80%e5%9d%82%e3%82%92%e7%99%bb%e3%82%8b%e3%81%9f%e3%82%81%e3%81%ae%e3%82%ae%e3%83%a4%e6%af%94%e7%ad%89%e3%82%ab%e3%82%b9%e3%82%bf%e3%83%a0%e3%82%92%e8%80%83%e3%81%88%e3%82%8b%e3%80%90/#respond</comments>
		
		<dc:creator><![CDATA[Tomozi2012]]></dc:creator>
		<pubDate>Mon, 05 Feb 2024 14:12:40 +0000</pubDate>
				<category><![CDATA[カスタム]]></category>
		<category><![CDATA[Dahon dash P8]]></category>
		<category><![CDATA[ギヤ比]]></category>
		<category><![CDATA[クランク]]></category>
		<category><![CDATA[クランク交換]]></category>
		<category><![CDATA[シフター]]></category>
		<category><![CDATA[スプロケット]]></category>
		<category><![CDATA[ダブル]]></category>
		<category><![CDATA[チェーン]]></category>
		<category><![CDATA[チェーンリング]]></category>
		<category><![CDATA[チェーン長]]></category>
		<category><![CDATA[ディオーレxt]]></category>
		<category><![CDATA[ビックギヤ]]></category>
		<category><![CDATA[フロントシングル]]></category>
		<category><![CDATA[フロントダブル]]></category>
		<category><![CDATA[フロントダブル化]]></category>
		<category><![CDATA[ミニベロ]]></category>
		<category><![CDATA[折り畳み自転車]]></category>
		<category><![CDATA[楕円チェーンリング]]></category>
		<category><![CDATA[激坂]]></category>
		<category><![CDATA[魔改造]]></category>
		<guid isPermaLink="false">https://2021tomoziblog.com/?p=3364</guid>

					<description><![CDATA[愛車ミニベロで子ノ根現初挑戦しまして、最大斜度２８%は足つきなしで登れないことが解ったｗゲン担ぎもあったので登りたい（何で）。トレーニングして登るのも自分のスタイルと違う。 ならばギヤ比だ。めちゃくちゃ軽くしてやるｗ超激 [&#8230;]]]></description>
										<content:encoded><![CDATA[
<p>愛車ミニベロで<a rel="noopener follow" target="_blank" href="https://2021tomoziblog.com/%e3%83%9f%e3%83%8b%e3%83%99%e3%83%ad%e3%81%a7%e8%a1%8c%e3%81%8f%e6%bf%80%e5%9d%82%e5%ad%90%e3%83%8e%e6%a0%b9%e7%8f%be%e3%81%ab%e5%88%9d%e6%8c%91%e6%88%a6%e3%80%90%e6%9c%80%e5%a4%a7%e5%8b%be%e9%85%8d/">子ノ根現初挑戦</a>しまして、最大斜度２８%は足つきなしで登れないことが解ったｗゲン担ぎもあったので登りたい（何で）。トレーニングして登るのも自分のスタイルと違う。</p>



<p>ならばギヤ比だ。めちゃくちゃ軽くしてやるｗ超激坂も楽に登りたいｗ（いや、じゃー登らなくても・・・）</p>



<p>フロントダブルにしてやろーか、ディオーレのスプロケットにローギヤ５１ｔてバカでかいのもあったな、さーていかがなものか&#x2600;&#xfe0f;（押して上がればいいんじゃない？）</p>



<p><a rel="noopener follow" target="_blank" href="https://2021tomoziblog.com/%e3%83%9f%e3%83%8b%e3%83%99%e3%83%ad%e3%81%ae%e3%82%ae%e3%83%a4%e6%af%94%e3%82%92%e8%80%83%e3%81%88%e3%82%8b%e3%80%90%e3%83%81%e3%82%a7%e3%83%bc%e3%83%b3%e9%95%b7%e3%80%91/">以前にギヤ比を考えて</a>ましたが、超激坂は範囲外でしたｗ</p>




  <div id="toc" class="toc tnt-number toc-center tnt-number border-element"><input type="checkbox" class="toc-checkbox" id="toc-checkbox-2" checked><label class="toc-title" for="toc-checkbox-2">目次</label>
    <div class="toc-content">
    <ol class="toc-list open"><li><a href="#toc1" tabindex="0">方向性</a></li><li><a href="#toc2" tabindex="0">現在の仕様</a></li><li><a href="#toc3" tabindex="0">フロントダブル</a></li><li><a href="#toc4" tabindex="0">ディオーレ５１ｔスプロケットは？</a></li><li><a href="#toc5" tabindex="0">ギヤ比</a></li><li><a href="#toc6" tabindex="0">考えた結果</a></li></ol>
    </div>
  </div>

<h2 class="wp-block-heading"><span id="toc1">方向性</span></h2>



<p>私のスタイルは旅がベースでスピードはあまり求めず、レース思考ではないです。荷物等積載してだいたいの道を行けて目的地に行けるような自転車にしてます（輪行も含めて）。</p>



<p>なので、スプロケットはワイドレシオでいいし、軽量化もするが強度がないとだめです。</p>



<p>スピード求めるのであればロードバイクに乗ります。ロードバイクに乗らないからトレーニングしません。</p>



<p>ではどうやって超激坂を登るか超軽い<strong>ギヤ比です。</strong></p>



<h2 class="wp-block-heading"><span id="toc2">現在の仕様</span></h2>



<p>フロントシングルでチェーンリングが楕円+-3の５０ｔ</p>



<p>リヤはマウンテンバイクコンポで１１−４６ｔ</p>



<p>ライトプロクランク 388g</p>




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<p>RIDEA楕円チェーンリング １０５ｇ</p>



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<p>ACRZボトムブラケット １４８ｇ</p>




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<p>合計６４１ｇ</p>



<h2 class="wp-block-heading"><span id="toc3">フロントダブル</span></h2>



<p>フロントダブルにするとギヤ比選び放題。</p>



<p>リヤディレイラーがマウンテンバイクコンポなのですが、フロントもマウンテンバイクコンポにしてしまうとトップ側がギヤ比低すぎるので、ロード用コンポで考えたいと思います。</p>



<p>推薦はされてないですが、リヤマウンテンバイクコンポ、フロントロード用コンポでも動きそうです。ミニベロだけにチェーンリングは大きくなります。</p>



<p>ボトムブラケット ディラエース ６５ｇ</p>



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<p>チェーンリング １０５ （５２−３６）742.6g</p>



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<p>105フロントディレーラー 89g</p>



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<p>105シフター １０５g</p>




<a rel="noopener nofollow" target="_blank" href="https://amzn.to/42uX6rK" title="Bitly" class="blogcard-wrap external-blogcard-wrap a-wrap cf"><div class="blogcard external-blogcard eb-left cf"><div class="blogcard-label external-blogcard-label"><span class="fa"></span></div><figure class="blogcard-thumbnail external-blogcard-thumbnail"><img loading="lazy" decoding="async" src="https://s.wordpress.com/mshots/v1/https%3A%2F%2Famzn.to%2F42uX6rK?w=320&#038;h=180" alt="" class="blogcard-thumb-image external-blogcard-thumb-image" width="320" height="180" /></figure><div class="blogcard-content external-blogcard-content"><div class="blogcard-title external-blogcard-title">Bitly</div><div class="blogcard-snippet external-blogcard-snippet"></div></div><div class="blogcard-footer external-blogcard-footer cf"><div class="blogcard-site external-blogcard-site"><div class="blogcard-favicon external-blogcard-favicon"><img loading="lazy" decoding="async" src="https://www.google.com/s2/favicons?domain=https://amzn.to/42uX6rK" alt="" class="blogcard-favicon-image external-blogcard-favicon-image" width="16" height="16" /></div><div class="blogcard-domain external-blogcard-domain">amzn.to</div></div></div></div></a>



<p>ケーブル ８０ｇ（仮）</p>



<p></p>



<p>合計１０８１ｇで４４０ｇ増 結構重いな(^_^;)</p>



<p>費用も3万前後 おおいな(^_^;)</p>



<p>今のクランクのままトーケンチタンBBにすると</p>



<p>クランク３８８ｇ、チェーンリングｗ１６０ｇ、トーケンBB１５０ｇ、１０５FF８９ｇ、１０５シフター１０５ｇ、仮ケーブル８０ｇで９７２ｇ</p>




<a rel="noopener nofollow" target="_blank" href="https://amzn.to/3wa3TuS" title="Bitly" class="blogcard-wrap external-blogcard-wrap a-wrap cf"><div class="blogcard external-blogcard eb-left cf"><div class="blogcard-label external-blogcard-label"><span class="fa"></span></div><figure class="blogcard-thumbnail external-blogcard-thumbnail"><img loading="lazy" decoding="async" src="https://s.wordpress.com/mshots/v1/https%3A%2F%2Famzn.to%2F3wa3TuS?w=320&#038;h=180" alt="" class="blogcard-thumb-image external-blogcard-thumb-image" width="320" height="180" /></figure><div class="blogcard-content external-blogcard-content"><div class="blogcard-title external-blogcard-title">Bitly</div><div class="blogcard-snippet external-blogcard-snippet"></div></div><div class="blogcard-footer external-blogcard-footer cf"><div class="blogcard-site external-blogcard-site"><div class="blogcard-favicon external-blogcard-favicon"><img loading="lazy" decoding="async" src="https://www.google.com/s2/favicons?domain=https://amzn.to/3wa3TuS" alt="" class="blogcard-favicon-image external-blogcard-favicon-image" width="16" height="16" /></div><div class="blogcard-domain external-blogcard-domain">amzn.to</div></div></div></div></a>



<p>あまり重さも費用も変わらない(^_^;)</p>



<h2 class="wp-block-heading"><span id="toc4">ディオーレ５１ｔスプロケットは？</span></h2>



<p>ディオーレにバカでかいスプロケットがあったような、交互性はあるのか？</p>



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<figure class="wp-block-image size-large"><img loading="lazy" decoding="async" width="439" height="1024" src="https://2021tomoziblog.com/wp-content/uploads/2024/02/screenshot_20240122-16331923842620326133337678-439x1024.jpg" alt="" class="wp-image-3459" srcset="https://2021tomoziblog.com/wp-content/uploads/2024/02/screenshot_20240122-16331923842620326133337678-439x1024.jpg 439w, https://2021tomoziblog.com/wp-content/uploads/2024/02/screenshot_20240122-16331923842620326133337678-129x300.jpg 129w, https://2021tomoziblog.com/wp-content/uploads/2024/02/screenshot_20240122-16331923842620326133337678-768x1792.jpg 768w, https://2021tomoziblog.com/wp-content/uploads/2024/02/screenshot_20240122-16331923842620326133337678-658x1536.jpg 658w, https://2021tomoziblog.com/wp-content/uploads/2024/02/screenshot_20240122-16331923842620326133337678.jpg 857w" sizes="auto, (max-width: 439px) 100vw, 439px" /></figure>



<p>交互性あるみたい。</p>



<p>チェーンの長さが気になる。</p>



<figure class="wp-block-image size-large"><img loading="lazy" decoding="async" width="467" height="1024" src="https://2021tomoziblog.com/wp-content/uploads/2024/02/image_editor_output_image681498238-17070498651675207799275995680405-467x1024.png" alt="" class="wp-image-3460" srcset="https://2021tomoziblog.com/wp-content/uploads/2024/02/image_editor_output_image681498238-17070498651675207799275995680405-467x1024.png 467w, https://2021tomoziblog.com/wp-content/uploads/2024/02/image_editor_output_image681498238-17070498651675207799275995680405-137x300.png 137w, https://2021tomoziblog.com/wp-content/uploads/2024/02/image_editor_output_image681498238-17070498651675207799275995680405-768x1682.png 768w, https://2021tomoziblog.com/wp-content/uploads/2024/02/image_editor_output_image681498238-17070498651675207799275995680405-701x1536.png 701w, https://2021tomoziblog.com/wp-content/uploads/2024/02/image_editor_output_image681498238-17070498651675207799275995680405.png 913w" sizes="auto, (max-width: 467px) 100vw, 467px" /></figure>



<p>ちょっと<a rel="noopener follow" target="_blank" href="https://2021tomoziblog.com/%e3%83%9f%e3%83%8b%e3%83%99%e3%83%ad%e3%81%ae%e3%82%ae%e3%83%a4%e6%af%94%e3%82%92%e8%80%83%e3%81%88%e3%82%8b%e3%80%90%e3%83%81%e3%82%a7%e3%83%bc%e3%83%b3%e9%95%b7%e3%80%91/">計画より</a>長くなりそうだけどよしとする。</p>



<p>ディオーレスプロケット１１−５１ｔは６２２ｇ重い(^_^;)でも、今のディオーレXTスプロケットは４３７ｇでその差は１８５ｇとダブルにするより軽い。フロントダブルは４４０ｇ多くなるからな。</p>



<p>費用も8000円くらいで一番コスパいい。</p>



<h2 class="wp-block-heading"><span id="toc5">ギヤ比</span></h2>



<figure class="wp-block-image size-large"><img loading="lazy" decoding="async" width="1024" height="363" src="https://2021tomoziblog.com/wp-content/uploads/2024/02/screenshot_20240204-21463927679487354148314619-1024x363.jpg" alt="" class="wp-image-3461" srcset="https://2021tomoziblog.com/wp-content/uploads/2024/02/screenshot_20240204-21463927679487354148314619-1024x363.jpg 1024w, https://2021tomoziblog.com/wp-content/uploads/2024/02/screenshot_20240204-21463927679487354148314619-300x106.jpg 300w, https://2021tomoziblog.com/wp-content/uploads/2024/02/screenshot_20240204-21463927679487354148314619-768x272.jpg 768w, https://2021tomoziblog.com/wp-content/uploads/2024/02/screenshot_20240204-21463927679487354148314619-1536x544.jpg 1536w, https://2021tomoziblog.com/wp-content/uploads/2024/02/screenshot_20240204-21463927679487354148314619.jpg 1999w" sizes="auto, (max-width: 1024px) 100vw, 1024px" /></figure>



<p>超激坂を行くのであればフロントダブルがギヤ比選びたい放題で良いけれど、５１ｔスプロケット面白くない？</p>



<p>最悪シングルのままでもフロントのチェーンリングを変えることを視野に入れておけば良い。</p>



<h2 class="wp-block-heading"><span id="toc6">考えた結果</span></h2>



<p>重量、コストパフォーマンス、面白さからディオーレ５１ｔスプロケットを導入します&#x2728;</p>



<p>※メーカー公式の組み合わせではないのでできないこともありますし、後ほど不具合おきたりします。カスタムは細部に気をつけ自己責任でお願いします。</p>



<p>ミニベロにバカでかい５１ｔスプロケット・・・ぬるふふふふ</p>



<p>（おせば・・・）</p>



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		<post-id xmlns="com-wordpress:feed-additions:1">3364</post-id>	</item>
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		<title>チタンチェーンリングボルト導入【ミニベロ】</title>
		<link>https://2021tomoziblog.com/%e3%83%81%e3%82%bf%e3%83%b3%e3%83%81%e3%82%a7%e3%83%bc%e3%83%b3%e3%83%aa%e3%83%b3%e3%82%b0%e3%83%9c%e3%83%ab%e3%83%88%e5%b0%8e%e5%85%a5%e3%80%90%e3%83%9f%e3%83%8b%e3%83%99%e3%83%ad%e3%80%91/</link>
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		<dc:creator><![CDATA[Tomozi2012]]></dc:creator>
		<pubDate>Sat, 06 Jan 2024 01:36:42 +0000</pubDate>
				<category><![CDATA[カスタム]]></category>
		<category><![CDATA[7075アルミ]]></category>
		<category><![CDATA[Dahon dash P8]]></category>
		<category><![CDATA[チェーンリングボルト]]></category>
		<category><![CDATA[チタン]]></category>
		<category><![CDATA[ミニベロ]]></category>
		<category><![CDATA[メンテナンス]]></category>
		<category><![CDATA[交換]]></category>
		<category><![CDATA[折り畳み自転車]]></category>
		<category><![CDATA[改造]]></category>
		<category><![CDATA[楕円チェーンリング]]></category>
		<guid isPermaLink="false">https://2021tomoziblog.com/?p=3243</guid>

					<description><![CDATA[今までアルミのチェーンリングボルトを使用していたが、チェーンリング交換やクランク交換してるとボルトがなめてしまった(^_^;) アルミは何回もつけたり外したりしてはダメでした。この際軽くて強度のあるチタンにします&#x2 [&#8230;]]]></description>
										<content:encoded><![CDATA[
<p>今までアルミのチェーンリングボルトを使用していたが、<a rel="noopener follow" target="_blank" href="https://2021tomoziblog.com/%e6%9b%b2%e3%81%8c%e3%81%a3%e3%81%9f%e3%83%81%e3%82%a7%e3%83%bc%e3%83%b3%e3%83%aa%e3%83%b3%e3%82%b0%e3%82%92%e4%ba%a4%e6%8f%9b%e3%80%81%e6%9b%b2%e3%81%8c%e3%81%a3%e3%81%9f%e3%81%ae%e3%81%af%e3%81%9d/">チェーンリング交換</a>や<a rel="noopener follow" target="_blank" href="https://2021tomoziblog.com/%e6%9b%b2%e3%81%8c%e3%81%a3%e3%81%9f%e3%82%af%e3%83%a9%e3%83%b3%e3%82%af%e3%82%92%e4%ba%a4%e6%8f%9b%e3%80%81%e3%83%a1%e3%83%b3%e3%83%86%e3%83%8a%e3%83%b3%e3%82%b9%e8%ac%9b%e5%ba%a7%ef%bc%88%e7%b6%9a2/">クランク交換</a>してるとボルトがなめてしまった(^_^;)</p>



<p>アルミは何回もつけたり外したりしてはダメでした。この際軽くて強度のあるチタンにします&#x2600;&#xfe0f;</p>




  <div id="toc" class="toc tnt-number toc-center tnt-number border-element"><input type="checkbox" class="toc-checkbox" id="toc-checkbox-4" checked><label class="toc-title" for="toc-checkbox-4">目次</label>
    <div class="toc-content">
    <ol class="toc-list open"><li><a href="#toc1" tabindex="0">チタンチェーンリングボルト</a></li><li><a href="#toc2" tabindex="0">交換</a></li></ol>
    </div>
  </div>

<h2 class="wp-block-heading"><span id="toc1">チタンチェーンリングボルト</span></h2>



<figure class="wp-block-image size-large"><img loading="lazy" decoding="async" width="1024" height="768" src="https://2021tomoziblog.com/wp-content/uploads/2024/01/dsc_07827438005449125790484-1024x768.jpg" alt="" class="wp-image-3241" srcset="https://2021tomoziblog.com/wp-content/uploads/2024/01/dsc_07827438005449125790484-1024x768.jpg 1024w, https://2021tomoziblog.com/wp-content/uploads/2024/01/dsc_07827438005449125790484-300x225.jpg 300w, https://2021tomoziblog.com/wp-content/uploads/2024/01/dsc_07827438005449125790484-768x576.jpg 768w, https://2021tomoziblog.com/wp-content/uploads/2024/01/dsc_07827438005449125790484-1536x1152.jpg 1536w, https://2021tomoziblog.com/wp-content/uploads/2024/01/dsc_07827438005449125790484.jpg 2000w" sizes="auto, (max-width: 1024px) 100vw, 1024px" /></figure>



<figure class="wp-block-image"><img loading="lazy" decoding="async" width="1024" height="768" src="https://2021tomoziblog.com/wp-content/uploads/2024/01/dsc_07816589547896692005468-1024x768.jpg" alt="" class="wp-image-3242" srcset="https://2021tomoziblog.com/wp-content/uploads/2024/01/dsc_07816589547896692005468-1024x768.jpg 1024w, https://2021tomoziblog.com/wp-content/uploads/2024/01/dsc_07816589547896692005468-300x225.jpg 300w, https://2021tomoziblog.com/wp-content/uploads/2024/01/dsc_07816589547896692005468-768x576.jpg 768w, https://2021tomoziblog.com/wp-content/uploads/2024/01/dsc_07816589547896692005468-1536x1152.jpg 1536w, https://2021tomoziblog.com/wp-content/uploads/2024/01/dsc_07816589547896692005468.jpg 2000w" sizes="auto, (max-width: 1024px) 100vw, 1024px" /></figure>



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<p>ダブル用チェーンリングをインナー側につけているので、シングルスピードだけどダブル用を使用してます。</p>



<figure class="wp-block-image size-large"><img loading="lazy" decoding="async" width="1024" height="768" src="https://2021tomoziblog.com/wp-content/uploads/2024/01/dsc_07853757570744816829703-1024x768.jpg" alt="" class="wp-image-3246" srcset="https://2021tomoziblog.com/wp-content/uploads/2024/01/dsc_07853757570744816829703-1024x768.jpg 1024w, https://2021tomoziblog.com/wp-content/uploads/2024/01/dsc_07853757570744816829703-300x225.jpg 300w, https://2021tomoziblog.com/wp-content/uploads/2024/01/dsc_07853757570744816829703-768x576.jpg 768w, https://2021tomoziblog.com/wp-content/uploads/2024/01/dsc_07853757570744816829703-1536x1152.jpg 1536w, https://2021tomoziblog.com/wp-content/uploads/2024/01/dsc_07853757570744816829703.jpg 2000w" sizes="auto, (max-width: 1024px) 100vw, 1024px" /></figure>



<p>15.1ｇアルミと同じぐらいですが強度が違います。アルミは使い捨てとまで言いませんが、つけたり外したり繰り返すとなめやすい。</p>



<h2 class="wp-block-heading"><span id="toc2">交換</span></h2>



<figure class="wp-block-image size-large"><img loading="lazy" decoding="async" width="1024" height="676" src="https://2021tomoziblog.com/wp-content/uploads/2024/01/image_editor_output_image-896527941-17045041131303652138715492323212-1024x676.jpg" alt="" class="wp-image-3247" srcset="https://2021tomoziblog.com/wp-content/uploads/2024/01/image_editor_output_image-896527941-17045041131303652138715492323212-1024x676.jpg 1024w, https://2021tomoziblog.com/wp-content/uploads/2024/01/image_editor_output_image-896527941-17045041131303652138715492323212-300x198.jpg 300w, https://2021tomoziblog.com/wp-content/uploads/2024/01/image_editor_output_image-896527941-17045041131303652138715492323212-768x507.jpg 768w, https://2021tomoziblog.com/wp-content/uploads/2024/01/image_editor_output_image-896527941-17045041131303652138715492323212-1536x1015.jpg 1536w, https://2021tomoziblog.com/wp-content/uploads/2024/01/image_editor_output_image-896527941-17045041131303652138715492323212.jpg 2000w" sizes="auto, (max-width: 1024px) 100vw, 1024px" /></figure>



<p>ミワさんにトルクレンチを借りてつけます。（ミワさんありがとう）</p>



<figure class="wp-block-image size-large"><img loading="lazy" decoding="async" width="1024" height="768" src="https://2021tomoziblog.com/wp-content/uploads/2024/01/dsc_07877382272334330972457-1024x768.jpg" alt="" class="wp-image-3248" srcset="https://2021tomoziblog.com/wp-content/uploads/2024/01/dsc_07877382272334330972457-1024x768.jpg 1024w, https://2021tomoziblog.com/wp-content/uploads/2024/01/dsc_07877382272334330972457-300x225.jpg 300w, https://2021tomoziblog.com/wp-content/uploads/2024/01/dsc_07877382272334330972457-768x576.jpg 768w, https://2021tomoziblog.com/wp-content/uploads/2024/01/dsc_07877382272334330972457-1536x1152.jpg 1536w, https://2021tomoziblog.com/wp-content/uploads/2024/01/dsc_07877382272334330972457.jpg 2000w" sizes="auto, (max-width: 1024px) 100vw, 1024px" /></figure>



<p>星型を描くように締めていきます。７Nで締めました。</p>



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<p>真っ直ぐ&#x2600;&#xfe0f;BBもぬるぬる&#x2728;</p>



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		<post-id xmlns="com-wordpress:feed-additions:1">3243</post-id>	</item>
		<item>
		<title>曲がったクランクを交換、メンテナンス講座（続2）</title>
		<link>https://2021tomoziblog.com/%e6%9b%b2%e3%81%8c%e3%81%a3%e3%81%9f%e3%82%af%e3%83%a9%e3%83%b3%e3%82%af%e3%82%92%e4%ba%a4%e6%8f%9b%e3%80%81%e3%83%a1%e3%83%b3%e3%83%86%e3%83%8a%e3%83%b3%e3%82%b9%e8%ac%9b%e5%ba%a7%ef%bc%88%e7%b6%9a2/</link>
					<comments>https://2021tomoziblog.com/%e6%9b%b2%e3%81%8c%e3%81%a3%e3%81%9f%e3%82%af%e3%83%a9%e3%83%b3%e3%82%af%e3%82%92%e4%ba%a4%e6%8f%9b%e3%80%81%e3%83%a1%e3%83%b3%e3%83%86%e3%83%8a%e3%83%b3%e3%82%b9%e8%ac%9b%e5%ba%a7%ef%bc%88%e7%b6%9a2/#respond</comments>
		
		<dc:creator><![CDATA[Tomozi2012]]></dc:creator>
		<pubDate>Wed, 20 Dec 2023 12:39:05 +0000</pubDate>
				<category><![CDATA[カスタム]]></category>
		<category><![CDATA[メンテナンス]]></category>
		<category><![CDATA[Dahon dash P8]]></category>
		<category><![CDATA[ridea]]></category>
		<category><![CDATA[インナーケーブル]]></category>
		<category><![CDATA[クランク]]></category>
		<category><![CDATA[クランク交換]]></category>
		<category><![CDATA[チェーンライン]]></category>
		<category><![CDATA[チェーンリング]]></category>
		<category><![CDATA[ミニベロ]]></category>
		<category><![CDATA[交換]]></category>
		<category><![CDATA[折り畳み自転車]]></category>
		<category><![CDATA[曲がる]]></category>
		<category><![CDATA[楕円]]></category>
		<category><![CDATA[楕円チェーンリング]]></category>
		<guid isPermaLink="false">https://2021tomoziblog.com/?p=3031</guid>

					<description><![CDATA[曲がったチェーンリング交換の時にクランクも曲がっていることが解った。 なので交換だー&#x2600;&#xfe0f; 目次 どんな感じニュークランク交換問題もあったよ どんな感じ 平らな床においてカタカタならないはずがな [&#8230;]]]></description>
										<content:encoded><![CDATA[
<p><a rel="follow noopener" target="_blank" href="https://2021tomoziblog.com/%e6%9b%b2%e3%81%8c%e3%81%a3%e3%81%9f%e3%83%81%e3%82%a7%e3%83%bc%e3%83%b3%e3%83%aa%e3%83%b3%e3%82%b0%e3%82%92%e4%ba%a4%e6%8f%9b%e3%80%81%e6%9b%b2%e3%81%8c%e3%81%a3%e3%81%9f%e3%81%ae%e3%81%af%e3%81%9d/">曲がったチェーンリング交換</a>の時にクランクも曲がっていることが解った。</p>



<p>なので交換だー&#x2600;&#xfe0f;</p>




  <div id="toc" class="toc tnt-number toc-center tnt-number border-element"><input type="checkbox" class="toc-checkbox" id="toc-checkbox-6" checked><label class="toc-title" for="toc-checkbox-6">目次</label>
    <div class="toc-content">
    <ol class="toc-list open"><li><a href="#toc1" tabindex="0">どんな感じ</a></li><li><a href="#toc2" tabindex="0">ニュークランク</a></li><li><a href="#toc3" tabindex="0">交換</a></li><li><a href="#toc4" tabindex="0">問題もあったよ</a></li></ol>
    </div>
  </div>

<h2 class="wp-block-heading"><span id="toc1">どんな感じ</span></h2>



<figure class="wp-block-video"><video height="1080" style="aspect-ratio: 1920 / 1080;" width="1920" controls src="https://2021tomoziblog.com/wp-content/uploads/2023/12/MOV_0727.mp4"></video></figure>



<p>平らな床においてカタカタならないはずがなってます。曲がってます。事故にあってるのですが、これはもうほぼほぼ事故で曲ったのではないでしょうか。</p>



<p>曲がっている方向もチェーンラインで負荷がかかる内側でなく外側に曲がっている。（と言うか2年ちかく曲がっていることに気づかない自分に驚き(^_^;)</p>



<h2 class="wp-block-heading"><span id="toc2">ニュークランク</span></h2>



<figure class="wp-block-image size-large"><img loading="lazy" decoding="async" width="1024" height="768" src="https://2021tomoziblog.com/wp-content/uploads/2023/12/dsc_07228779838540247750432-1024x768.jpg" alt="" class="wp-image-3039" srcset="https://2021tomoziblog.com/wp-content/uploads/2023/12/dsc_07228779838540247750432-1024x768.jpg 1024w, https://2021tomoziblog.com/wp-content/uploads/2023/12/dsc_07228779838540247750432-300x225.jpg 300w, https://2021tomoziblog.com/wp-content/uploads/2023/12/dsc_07228779838540247750432-768x576.jpg 768w, https://2021tomoziblog.com/wp-content/uploads/2023/12/dsc_07228779838540247750432-1536x1152.jpg 1536w, https://2021tomoziblog.com/wp-content/uploads/2023/12/dsc_07228779838540247750432.jpg 2000w" sizes="auto, (max-width: 1024px) 100vw, 1024px" /></figure>



<p>ライトプロです。この肉抜きされてるのがいい。そして、安い。</p>




<a rel="noopener nofollow" target="_blank" href="https://amzn.to/3SrTu6R" title="https://amzn.to/3SrTu6R" class="blogcard-wrap external-blogcard-wrap a-wrap cf"><div class="blogcard external-blogcard eb-left cf"><div class="blogcard-label external-blogcard-label"><span class="fa"></span></div><figure class="blogcard-thumbnail external-blogcard-thumbnail"><img loading="lazy" decoding="async" src="https://s.wordpress.com/mshots/v1/https%3A%2F%2Famzn.to%2F3SrTu6R?w=320&#038;h=180" alt="" class="blogcard-thumb-image external-blogcard-thumb-image" width="320" height="180" /></figure><div class="blogcard-content external-blogcard-content"><div class="blogcard-title external-blogcard-title">https://amzn.to/3SrTu6R</div><div class="blogcard-snippet external-blogcard-snippet"></div></div><div class="blogcard-footer external-blogcard-footer cf"><div class="blogcard-site external-blogcard-site"><div class="blogcard-favicon external-blogcard-favicon"><img loading="lazy" decoding="async" src="https://www.google.com/s2/favicons?domain=https://amzn.to/3SrTu6R" alt="" class="blogcard-favicon-image external-blogcard-favicon-image" width="16" height="16" /></div><div class="blogcard-domain external-blogcard-domain">amzn.to</div></div></div></div></a>



<figure class="wp-block-image size-large"><img loading="lazy" decoding="async" width="1024" height="768" src="https://2021tomoziblog.com/wp-content/uploads/2023/12/dsc_07235658911571526889735-1024x768.jpg" alt="" class="wp-image-3040" srcset="https://2021tomoziblog.com/wp-content/uploads/2023/12/dsc_07235658911571526889735-1024x768.jpg 1024w, https://2021tomoziblog.com/wp-content/uploads/2023/12/dsc_07235658911571526889735-300x225.jpg 300w, https://2021tomoziblog.com/wp-content/uploads/2023/12/dsc_07235658911571526889735-768x576.jpg 768w, https://2021tomoziblog.com/wp-content/uploads/2023/12/dsc_07235658911571526889735-1536x1152.jpg 1536w, https://2021tomoziblog.com/wp-content/uploads/2023/12/dsc_07235658911571526889735.jpg 2000w" sizes="auto, (max-width: 1024px) 100vw, 1024px" /></figure>



<figure class="wp-block-image"><img loading="lazy" decoding="async" width="1024" height="768" src="https://2021tomoziblog.com/wp-content/uploads/2023/12/dsc_07241804759795110901117-1024x768.jpg" alt="" class="wp-image-3041" srcset="https://2021tomoziblog.com/wp-content/uploads/2023/12/dsc_07241804759795110901117-1024x768.jpg 1024w, https://2021tomoziblog.com/wp-content/uploads/2023/12/dsc_07241804759795110901117-300x225.jpg 300w, https://2021tomoziblog.com/wp-content/uploads/2023/12/dsc_07241804759795110901117-768x576.jpg 768w, https://2021tomoziblog.com/wp-content/uploads/2023/12/dsc_07241804759795110901117-1536x1152.jpg 1536w, https://2021tomoziblog.com/wp-content/uploads/2023/12/dsc_07241804759795110901117.jpg 2000w" sizes="auto, (max-width: 1024px) 100vw, 1024px" /></figure>



<p>色は黒にしたんだけどロゴ無いほうがかっこいいな。</p>



<figure class="wp-block-image size-large"><img loading="lazy" decoding="async" width="1024" height="768" src="https://2021tomoziblog.com/wp-content/uploads/2023/12/dsc_07251675974608410557523-1024x768.jpg" alt="" class="wp-image-3043" srcset="https://2021tomoziblog.com/wp-content/uploads/2023/12/dsc_07251675974608410557523-1024x768.jpg 1024w, https://2021tomoziblog.com/wp-content/uploads/2023/12/dsc_07251675974608410557523-300x225.jpg 300w, https://2021tomoziblog.com/wp-content/uploads/2023/12/dsc_07251675974608410557523-768x576.jpg 768w, https://2021tomoziblog.com/wp-content/uploads/2023/12/dsc_07251675974608410557523-1536x1152.jpg 1536w, https://2021tomoziblog.com/wp-content/uploads/2023/12/dsc_07251675974608410557523.jpg 2000w" sizes="auto, (max-width: 1024px) 100vw, 1024px" /></figure>



<figure class="wp-block-image"><img loading="lazy" decoding="async" width="1024" height="768" src="https://2021tomoziblog.com/wp-content/uploads/2023/12/dsc_07318196132352753146922-1024x768.jpg" alt="" class="wp-image-3042" srcset="https://2021tomoziblog.com/wp-content/uploads/2023/12/dsc_07318196132352753146922-1024x768.jpg 1024w, https://2021tomoziblog.com/wp-content/uploads/2023/12/dsc_07318196132352753146922-300x225.jpg 300w, https://2021tomoziblog.com/wp-content/uploads/2023/12/dsc_07318196132352753146922-768x576.jpg 768w, https://2021tomoziblog.com/wp-content/uploads/2023/12/dsc_07318196132352753146922-1536x1152.jpg 1536w, https://2021tomoziblog.com/wp-content/uploads/2023/12/dsc_07318196132352753146922.jpg 2000w" sizes="auto, (max-width: 1024px) 100vw, 1024px" /></figure>



<p>388gと355ｇで３３ｇの増加。たぶんリリース的にもニュークランクの方が後続タイプ。剛性を強化したのだろう。剛性が増したので良しとする。</p>



<h2 class="wp-block-heading"><span id="toc3">交換</span></h2>



<figure class="wp-block-image size-large"><img loading="lazy" decoding="async" width="1024" height="768" src="https://2021tomoziblog.com/wp-content/uploads/2023/12/dsc_06987629946043251636084-1024x768.jpg" alt="" class="wp-image-3027" srcset="https://2021tomoziblog.com/wp-content/uploads/2023/12/dsc_06987629946043251636084-1024x768.jpg 1024w, https://2021tomoziblog.com/wp-content/uploads/2023/12/dsc_06987629946043251636084-300x225.jpg 300w, https://2021tomoziblog.com/wp-content/uploads/2023/12/dsc_06987629946043251636084-768x576.jpg 768w, https://2021tomoziblog.com/wp-content/uploads/2023/12/dsc_06987629946043251636084-1536x1152.jpg 1536w, https://2021tomoziblog.com/wp-content/uploads/2023/12/dsc_06987629946043251636084.jpg 2000w" sizes="auto, (max-width: 1024px) 100vw, 1024px" /></figure>



<p>クランクをくぼみに合わせ、トルクレンチを使いチェーンボルトを締める。（材質により力が変わる。６Nー８Nでだいたい商品ページやボルトに記載されてる。）</p>



<figure class="wp-block-image size-large"><img loading="lazy" decoding="async" width="1024" height="768" src="https://2021tomoziblog.com/wp-content/uploads/2023/12/dsc_07337885532039092674723-1024x768.jpg" alt="" class="wp-image-3044" srcset="https://2021tomoziblog.com/wp-content/uploads/2023/12/dsc_07337885532039092674723-1024x768.jpg 1024w, https://2021tomoziblog.com/wp-content/uploads/2023/12/dsc_07337885532039092674723-300x225.jpg 300w, https://2021tomoziblog.com/wp-content/uploads/2023/12/dsc_07337885532039092674723-768x576.jpg 768w, https://2021tomoziblog.com/wp-content/uploads/2023/12/dsc_07337885532039092674723-1536x1152.jpg 1536w, https://2021tomoziblog.com/wp-content/uploads/2023/12/dsc_07337885532039092674723.jpg 2000w" sizes="auto, (max-width: 1024px) 100vw, 1024px" /></figure>



<p>チェーンリングはチェーンライン問題でインナー側につけてます。なのでチェアリングボルトはダブル用です（この時は気づかずシングル用を使ってました）。</p>



<p>インナー側につけると、外側に空間ができるのですが、おじさんがワッシャー作ってくれました。ありがとう。</p>



<figure class="wp-block-image"><img loading="lazy" decoding="async" width="1024" height="768" src="https://2021tomoziblog.com/wp-content/uploads/2023/12/dsc_07327585691467281599776-1024x768.jpg" alt="" class="wp-image-3045" srcset="https://2021tomoziblog.com/wp-content/uploads/2023/12/dsc_07327585691467281599776-1024x768.jpg 1024w, https://2021tomoziblog.com/wp-content/uploads/2023/12/dsc_07327585691467281599776-300x225.jpg 300w, https://2021tomoziblog.com/wp-content/uploads/2023/12/dsc_07327585691467281599776-768x576.jpg 768w, https://2021tomoziblog.com/wp-content/uploads/2023/12/dsc_07327585691467281599776-1536x1152.jpg 1536w, https://2021tomoziblog.com/wp-content/uploads/2023/12/dsc_07327585691467281599776.jpg 2000w" sizes="auto, (max-width: 1024px) 100vw, 1024px" /></figure>



<p>アルミのチェーンリングボルトを使用していましたが、アルミは何度も付け替えてはだめでした。なめました。ダブル用のところを無理にシングルで締めていたのもありますが。</p>



<figure class="wp-block-image size-large"><img loading="lazy" decoding="async" width="1024" height="768" src="https://2021tomoziblog.com/wp-content/uploads/2023/12/dsc_07297803618642219425883-1024x768.jpg" alt="" class="wp-image-3049" srcset="https://2021tomoziblog.com/wp-content/uploads/2023/12/dsc_07297803618642219425883-1024x768.jpg 1024w, https://2021tomoziblog.com/wp-content/uploads/2023/12/dsc_07297803618642219425883-300x225.jpg 300w, https://2021tomoziblog.com/wp-content/uploads/2023/12/dsc_07297803618642219425883-768x576.jpg 768w, https://2021tomoziblog.com/wp-content/uploads/2023/12/dsc_07297803618642219425883-1536x1152.jpg 1536w, https://2021tomoziblog.com/wp-content/uploads/2023/12/dsc_07297803618642219425883.jpg 2000w" sizes="auto, (max-width: 1024px) 100vw, 1024px" /></figure>



<figure class="wp-block-image size-large"><img loading="lazy" decoding="async" width="925" height="1024" src="https://2021tomoziblog.com/wp-content/uploads/2023/12/jzq5b04700352743650737949-925x1024.jpg" alt="" class="wp-image-3050" srcset="https://2021tomoziblog.com/wp-content/uploads/2023/12/jzq5b04700352743650737949-925x1024.jpg 925w, https://2021tomoziblog.com/wp-content/uploads/2023/12/jzq5b04700352743650737949-271x300.jpg 271w, https://2021tomoziblog.com/wp-content/uploads/2023/12/jzq5b04700352743650737949-768x850.jpg 768w, https://2021tomoziblog.com/wp-content/uploads/2023/12/jzq5b04700352743650737949-1387x1536.jpg 1387w, https://2021tomoziblog.com/wp-content/uploads/2023/12/jzq5b04700352743650737949.jpg 1806w" sizes="auto, (max-width: 925px) 100vw, 925px" /></figure>



<p>前と比べてかっこよくなりました。</p>



<figure class="wp-block-video"><video height="1080" style="aspect-ratio: 1920 / 1080;" width="1920" controls src="https://2021tomoziblog.com/wp-content/uploads/2023/12/MOV_0728.mp4"></video></figure>



<p>トルクレンチなしだと少し歪んでる(^_^;)</p>



<figure class="wp-block-video"><video height="1080" style="aspect-ratio: 1920 / 1080;" width="1920" controls src="https://2021tomoziblog.com/wp-content/uploads/2023/12/MOV_0739.mp4"></video></figure>



<p>トルクレンチありで良くなりました。</p>



<figure class="wp-block-image size-large"><img loading="lazy" decoding="async" width="1024" height="768" src="https://2021tomoziblog.com/wp-content/uploads/2023/12/dsc_07386696137844794909708-1024x768.jpg" alt="" class="wp-image-3052" srcset="https://2021tomoziblog.com/wp-content/uploads/2023/12/dsc_07386696137844794909708-1024x768.jpg 1024w, https://2021tomoziblog.com/wp-content/uploads/2023/12/dsc_07386696137844794909708-300x225.jpg 300w, https://2021tomoziblog.com/wp-content/uploads/2023/12/dsc_07386696137844794909708-768x576.jpg 768w, https://2021tomoziblog.com/wp-content/uploads/2023/12/dsc_07386696137844794909708-1536x1152.jpg 1536w, https://2021tomoziblog.com/wp-content/uploads/2023/12/dsc_07386696137844794909708.jpg 2000w" sizes="auto, (max-width: 1024px) 100vw, 1024px" /></figure>



<figure class="wp-block-image"><img loading="lazy" decoding="async" width="1024" height="768" src="https://2021tomoziblog.com/wp-content/uploads/2023/12/dsc_07408416862500902058618-1024x768.jpg" alt="" class="wp-image-3051" srcset="https://2021tomoziblog.com/wp-content/uploads/2023/12/dsc_07408416862500902058618-1024x768.jpg 1024w, https://2021tomoziblog.com/wp-content/uploads/2023/12/dsc_07408416862500902058618-300x225.jpg 300w, https://2021tomoziblog.com/wp-content/uploads/2023/12/dsc_07408416862500902058618-768x576.jpg 768w, https://2021tomoziblog.com/wp-content/uploads/2023/12/dsc_07408416862500902058618-1536x1152.jpg 1536w, https://2021tomoziblog.com/wp-content/uploads/2023/12/dsc_07408416862500902058618.jpg 2000w" sizes="auto, (max-width: 1024px) 100vw, 1024px" /></figure>



<p>おじさんがカーボンシールを作ってくれて、ロゴかくせました&#x2728;</p>



<h2 class="wp-block-heading"><span id="toc4">問題もあったよ</span></h2>



<figure class="wp-block-image size-large"><img loading="lazy" decoding="async" width="768" height="1024" src="https://2021tomoziblog.com/wp-content/uploads/2023/12/dsc_07622357925737618028669-768x1024.jpg" alt="" class="wp-image-3065" srcset="https://2021tomoziblog.com/wp-content/uploads/2023/12/dsc_07622357925737618028669-768x1024.jpg 768w, https://2021tomoziblog.com/wp-content/uploads/2023/12/dsc_07622357925737618028669-225x300.jpg 225w, https://2021tomoziblog.com/wp-content/uploads/2023/12/dsc_07622357925737618028669-1152x1536.jpg 1152w, https://2021tomoziblog.com/wp-content/uploads/2023/12/dsc_07622357925737618028669.jpg 1500w" sizes="auto, (max-width: 768px) 100vw, 768px" /></figure>



<p>前に比べてチェーンラインがハイ側に１ギヤ分よりました。</p>



<p>ディレイラー調整したことと、チェーンラインたすき掛けになったことにより、ローギヤでクランク逆回転するとチェーンが落ちてしまいました。</p>



<p>ケーブル引っ張りガイドプーリーを移動させたり、ディレイラー調整したりいろいろしましたが、ボトムブラケットの軸長を短くしてチェーンラインを修正するしかないようです。</p>



<p>今のところ逆回転しなければむしろ調子いいのでそのままです。</p>




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		<post-id xmlns="com-wordpress:feed-additions:1">3031</post-id>	</item>
		<item>
		<title>曲がったチェーンリングを交換、曲がったのはそれだけでなかった。メンテナンス講座（続）</title>
		<link>https://2021tomoziblog.com/%e6%9b%b2%e3%81%8c%e3%81%a3%e3%81%9f%e3%83%81%e3%82%a7%e3%83%bc%e3%83%b3%e3%83%aa%e3%83%b3%e3%82%b0%e3%82%92%e4%ba%a4%e6%8f%9b%e3%80%81%e6%9b%b2%e3%81%8c%e3%81%a3%e3%81%9f%e3%81%ae%e3%81%af%e3%81%9d/</link>
					<comments>https://2021tomoziblog.com/%e6%9b%b2%e3%81%8c%e3%81%a3%e3%81%9f%e3%83%81%e3%82%a7%e3%83%bc%e3%83%b3%e3%83%aa%e3%83%b3%e3%82%b0%e3%82%92%e4%ba%a4%e6%8f%9b%e3%80%81%e6%9b%b2%e3%81%8c%e3%81%a3%e3%81%9f%e3%81%ae%e3%81%af%e3%81%9d/#respond</comments>
		
		<dc:creator><![CDATA[Tomozi2012]]></dc:creator>
		<pubDate>Sun, 17 Dec 2023 08:07:04 +0000</pubDate>
				<category><![CDATA[カスタム]]></category>
		<category><![CDATA[メンテナンス]]></category>
		<category><![CDATA[Dahon dash P8]]></category>
		<category><![CDATA[ribea]]></category>
		<category><![CDATA[チェーンリング]]></category>
		<category><![CDATA[チェーンリング交換]]></category>
		<category><![CDATA[ミニベロ]]></category>
		<category><![CDATA[交換]]></category>
		<category><![CDATA[折り畳み自転車]]></category>
		<category><![CDATA[楕円]]></category>
		<category><![CDATA[楕円チェーンリング]]></category>
		<category><![CDATA[自転車]]></category>
		<guid isPermaLink="false">https://2021tomoziblog.com/?p=3011</guid>

					<description><![CDATA[メンテナンスを教えてもらった時にチェーンリングが曲ってることが解った。なので交換することにした。 目次 現状にゅーチェーンリング交換チェーンうねりは解消か？ 現状 平らな床につけて数ミリ浮いている、ぴったり床につくはずが [&#8230;]]]></description>
										<content:encoded><![CDATA[
<p><a rel="noopener follow" target="_blank" href="https://2021tomoziblog.com/%e3%83%a1%e3%83%b3%e3%83%86%e3%83%8a%e3%83%b3%e3%82%b9%e3%82%92%e6%95%99%e3%81%88%e3%81%a6%e3%82%82%e3%82%89%e3%81%a3%e3%81%9f/">メンテナンス</a>を教えてもらった時にチェーンリングが曲ってることが解った。なので交換することにした。</p>




  <div id="toc" class="toc tnt-number toc-center tnt-number border-element"><input type="checkbox" class="toc-checkbox" id="toc-checkbox-8" checked><label class="toc-title" for="toc-checkbox-8">目次</label>
    <div class="toc-content">
    <ol class="toc-list open"><li><a href="#toc1" tabindex="0">現状</a></li><li><a href="#toc2" tabindex="0">にゅーチェーンリング</a></li><li><a href="#toc3" tabindex="0">交換</a></li><li><a href="#toc4" tabindex="0">チェーンうねりは解消か？</a></li></ol>
    </div>
  </div>

<h2 class="wp-block-heading"><span id="toc1">現状</span></h2>



<figure class="wp-block-video"><video height="1080" style="aspect-ratio: 1920 / 1080;" width="1920" controls src="https://2021tomoziblog.com/wp-content/uploads/2023/12/MOV_0701.mp4"></video></figure>



<figure class="wp-block-image size-large"><img loading="lazy" decoding="async" width="1024" height="671" src="https://2021tomoziblog.com/wp-content/uploads/2023/12/image_editor_output_image-1129255233-170277456150999168079778079761-1024x671.jpg" alt="" class="wp-image-3018" srcset="https://2021tomoziblog.com/wp-content/uploads/2023/12/image_editor_output_image-1129255233-170277456150999168079778079761-1024x671.jpg 1024w, https://2021tomoziblog.com/wp-content/uploads/2023/12/image_editor_output_image-1129255233-170277456150999168079778079761-300x197.jpg 300w, https://2021tomoziblog.com/wp-content/uploads/2023/12/image_editor_output_image-1129255233-170277456150999168079778079761-768x503.jpg 768w, https://2021tomoziblog.com/wp-content/uploads/2023/12/image_editor_output_image-1129255233-170277456150999168079778079761-1536x1007.jpg 1536w, https://2021tomoziblog.com/wp-content/uploads/2023/12/image_editor_output_image-1129255233-170277456150999168079778079761.jpg 2000w" sizes="auto, (max-width: 1024px) 100vw, 1024px" /></figure>



<p>平らな床につけて数ミリ浮いている、ぴったり床につくはずがついてない。</p>



<p>チェーンラインを考えるとおかしい、ペダルを回す時内側の方が負荷がかかっているはずなのに、外側へ曲っている。</p>



<p>これは前に事故したことが怪しい。</p>



<h2 class="wp-block-heading"><span id="toc2">にゅーチェーンリング</span></h2>



<figure class="wp-block-image size-large"><img loading="lazy" decoding="async" width="1024" height="768" src="https://2021tomoziblog.com/wp-content/uploads/2023/12/dsc_06842922271258872085436-1024x768.jpg" alt="" class="wp-image-3019" srcset="https://2021tomoziblog.com/wp-content/uploads/2023/12/dsc_06842922271258872085436-1024x768.jpg 1024w, https://2021tomoziblog.com/wp-content/uploads/2023/12/dsc_06842922271258872085436-300x225.jpg 300w, https://2021tomoziblog.com/wp-content/uploads/2023/12/dsc_06842922271258872085436-768x576.jpg 768w, https://2021tomoziblog.com/wp-content/uploads/2023/12/dsc_06842922271258872085436-1536x1152.jpg 1536w, https://2021tomoziblog.com/wp-content/uploads/2023/12/dsc_06842922271258872085436.jpg 2000w" sizes="auto, (max-width: 1024px) 100vw, 1024px" /></figure>



<figure class="wp-block-image"><img loading="lazy" decoding="async" width="1024" height="768" src="https://2021tomoziblog.com/wp-content/uploads/2023/12/dsc_06838500171727983207797-1024x768.jpg" alt="" class="wp-image-3020" srcset="https://2021tomoziblog.com/wp-content/uploads/2023/12/dsc_06838500171727983207797-1024x768.jpg 1024w, https://2021tomoziblog.com/wp-content/uploads/2023/12/dsc_06838500171727983207797-300x225.jpg 300w, https://2021tomoziblog.com/wp-content/uploads/2023/12/dsc_06838500171727983207797-768x576.jpg 768w, https://2021tomoziblog.com/wp-content/uploads/2023/12/dsc_06838500171727983207797-1536x1152.jpg 1536w, https://2021tomoziblog.com/wp-content/uploads/2023/12/dsc_06838500171727983207797.jpg 2000w" sizes="auto, (max-width: 1024px) 100vw, 1024px" /></figure>



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<p>RIDEAの楕円＋ー３ｔで５０ｔの楕円です。</p>



<p>5アーム用BCD130（アームの長さ）</p>



<p><a rel="noopener follow" target="_blank" href="https://2021tomoziblog.com/%e3%83%9f%e3%83%8b%e3%83%99%e3%83%ad%e3%81%ae%e3%82%ae%e3%83%a4%e6%af%94%e3%82%92%e8%80%83%e3%81%88%e3%82%8b%e3%80%90%e3%83%81%e3%82%a7%e3%83%bc%e3%83%b3%e9%95%b7%e3%80%91/">ギヤ比を考えた記事</a>からこれにしようとおもっていた。</p>



<figure class="wp-block-image size-large"><img loading="lazy" decoding="async" width="1024" height="597" src="https://2021tomoziblog.com/wp-content/uploads/2023/12/image_editor_output_image-1511744977-17027767719812714223214436000040.jpg" alt="" class="wp-image-3024" srcset="https://2021tomoziblog.com/wp-content/uploads/2023/12/image_editor_output_image-1511744977-17027767719812714223214436000040.jpg 1024w, https://2021tomoziblog.com/wp-content/uploads/2023/12/image_editor_output_image-1511744977-17027767719812714223214436000040-300x175.jpg 300w, https://2021tomoziblog.com/wp-content/uploads/2023/12/image_editor_output_image-1511744977-17027767719812714223214436000040-768x448.jpg 768w" sizes="auto, (max-width: 1024px) 100vw, 1024px" /></figure>



<figure class="wp-block-image"><img loading="lazy" decoding="async" width="1024" height="768" src="https://2021tomoziblog.com/wp-content/uploads/2023/12/dsc_06977163907698468891230-1024x768.jpg" alt="" class="wp-image-3021" srcset="https://2021tomoziblog.com/wp-content/uploads/2023/12/dsc_06977163907698468891230-1024x768.jpg 1024w, https://2021tomoziblog.com/wp-content/uploads/2023/12/dsc_06977163907698468891230-300x225.jpg 300w, https://2021tomoziblog.com/wp-content/uploads/2023/12/dsc_06977163907698468891230-768x576.jpg 768w, https://2021tomoziblog.com/wp-content/uploads/2023/12/dsc_06977163907698468891230-1536x1152.jpg 1536w, https://2021tomoziblog.com/wp-content/uploads/2023/12/dsc_06977163907698468891230.jpg 2000w" sizes="auto, (max-width: 1024px) 100vw, 1024px" /></figure>



<figure class="wp-block-image size-large"><img loading="lazy" decoding="async" width="650" height="762" src="https://2021tomoziblog.com/wp-content/uploads/2023/12/image_editor_output_image1061479617-17027768014444014402679205109653.jpg" alt="" class="wp-image-3025" srcset="https://2021tomoziblog.com/wp-content/uploads/2023/12/image_editor_output_image1061479617-17027768014444014402679205109653.jpg 650w, https://2021tomoziblog.com/wp-content/uploads/2023/12/image_editor_output_image1061479617-17027768014444014402679205109653-256x300.jpg 256w" sizes="auto, (max-width: 650px) 100vw, 650px" /></figure>



<p>前のは同じモデルで５４ｔです。比べてみると同じ＋ー３ｔ楕円でも５０ｔの方がとがって楕円に見える。</p>



<h2 class="wp-block-heading"><span id="toc3">交換</span></h2>



<figure class="wp-block-image size-large"><img loading="lazy" decoding="async" width="1024" height="768" src="https://2021tomoziblog.com/wp-content/uploads/2023/12/dsc_06957346927693462361993-1024x768.jpg" alt="" class="wp-image-3026" srcset="https://2021tomoziblog.com/wp-content/uploads/2023/12/dsc_06957346927693462361993-1024x768.jpg 1024w, https://2021tomoziblog.com/wp-content/uploads/2023/12/dsc_06957346927693462361993-300x225.jpg 300w, https://2021tomoziblog.com/wp-content/uploads/2023/12/dsc_06957346927693462361993-768x576.jpg 768w, https://2021tomoziblog.com/wp-content/uploads/2023/12/dsc_06957346927693462361993-1536x1152.jpg 1536w, https://2021tomoziblog.com/wp-content/uploads/2023/12/dsc_06957346927693462361993.jpg 2000w" sizes="auto, (max-width: 1024px) 100vw, 1024px" /></figure>



<p>チェーンリングを外す。</p>



<figure class="wp-block-image size-large"><img loading="lazy" decoding="async" width="1024" height="768" src="https://2021tomoziblog.com/wp-content/uploads/2023/12/dsc_06987629946043251636084-1024x768.jpg" alt="" class="wp-image-3027" srcset="https://2021tomoziblog.com/wp-content/uploads/2023/12/dsc_06987629946043251636084-1024x768.jpg 1024w, https://2021tomoziblog.com/wp-content/uploads/2023/12/dsc_06987629946043251636084-300x225.jpg 300w, https://2021tomoziblog.com/wp-content/uploads/2023/12/dsc_06987629946043251636084-768x576.jpg 768w, https://2021tomoziblog.com/wp-content/uploads/2023/12/dsc_06987629946043251636084-1536x1152.jpg 1536w, https://2021tomoziblog.com/wp-content/uploads/2023/12/dsc_06987629946043251636084.jpg 2000w" sizes="auto, (max-width: 1024px) 100vw, 1024px" /></figure>



<p>このくぼみにクランクを合わす。</p>



<figure class="wp-block-image size-large"><img loading="lazy" decoding="async" width="1024" height="931" src="https://2021tomoziblog.com/wp-content/uploads/2023/12/image_editor_output_image-1750784866-17027989379772761696569519948012-1024x931.jpg" alt="" class="wp-image-3029" srcset="https://2021tomoziblog.com/wp-content/uploads/2023/12/image_editor_output_image-1750784866-17027989379772761696569519948012-1024x931.jpg 1024w, https://2021tomoziblog.com/wp-content/uploads/2023/12/image_editor_output_image-1750784866-17027989379772761696569519948012-300x273.jpg 300w, https://2021tomoziblog.com/wp-content/uploads/2023/12/image_editor_output_image-1750784866-17027989379772761696569519948012-768x698.jpg 768w, https://2021tomoziblog.com/wp-content/uploads/2023/12/image_editor_output_image-1750784866-17027989379772761696569519948012-1536x1397.jpg 1536w, https://2021tomoziblog.com/wp-content/uploads/2023/12/image_editor_output_image-1750784866-17027989379772761696569519948012.jpg 2000w" sizes="auto, (max-width: 1024px) 100vw, 1024px" /></figure>



<p>ボルトをつけて完成だけど、別日におじさんにトルクレンチを借りて５N（アルミだったので）でつけた。</p>



<h2 class="wp-block-heading"><span id="toc4">チェーンうねりは解消か？</span></h2>



<figure class="wp-block-video"><video height="1080" style="aspect-ratio: 1920 / 1080;" width="1920" controls src="https://2021tomoziblog.com/wp-content/uploads/2023/12/MOV_0726.mp4"></video></figure>



<p>あかんやん。マシになっただけやん(^_^;)</p>



<p>これはあれだクランクもまがっておる。</p>



<p>今度は<a rel="follow noopener" target="_blank" href="https://2021tomoziblog.com/%e6%9b%b2%e3%81%8c%e3%81%a3%e3%81%9f%e3%82%af%e3%83%a9%e3%83%b3%e3%82%af%e3%82%92%e4%ba%a4%e6%8f%9b%e3%80%81%e3%83%a1%e3%83%b3%e3%83%86%e3%83%8a%e3%83%b3%e3%82%b9%e8%ac%9b%e5%ba%a7%ef%bc%88%e7%b6%9a2/">クランク交換</a>だ。笑</p>



<p>※曲がった原因は事故によるものだと思われる。メーカーが悪いわけではないです。</p>



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		<post-id xmlns="com-wordpress:feed-additions:1">3011</post-id>	</item>
		<item>
		<title>メンテナンスを教えてもらった</title>
		<link>https://2021tomoziblog.com/%e3%83%a1%e3%83%b3%e3%83%86%e3%83%8a%e3%83%b3%e3%82%b9%e3%82%92%e6%95%99%e3%81%88%e3%81%a6%e3%82%82%e3%82%89%e3%81%a3%e3%81%9f/</link>
					<comments>https://2021tomoziblog.com/%e3%83%a1%e3%83%b3%e3%83%86%e3%83%8a%e3%83%b3%e3%82%b9%e3%82%92%e6%95%99%e3%81%88%e3%81%a6%e3%82%82%e3%82%89%e3%81%a3%e3%81%9f/#comments</comments>
		
		<dc:creator><![CDATA[Tomozi2012]]></dc:creator>
		<pubDate>Sat, 16 Dec 2023 08:16:17 +0000</pubDate>
				<category><![CDATA[メンテナンス]]></category>
		<category><![CDATA[BB]]></category>
		<category><![CDATA[Dahon dash P8]]></category>
		<category><![CDATA[インナーケーブル]]></category>
		<category><![CDATA[クランク]]></category>
		<category><![CDATA[シフトインナーケーブル]]></category>
		<category><![CDATA[チェーンリング]]></category>
		<category><![CDATA[ブレーキシュー]]></category>
		<category><![CDATA[ボトムブラケット]]></category>
		<category><![CDATA[ミニベロ]]></category>
		<category><![CDATA[折り畳み自転車]]></category>
		<category><![CDATA[曲がる]]></category>
		<category><![CDATA[楕円]]></category>
		<category><![CDATA[楕円チェーンリング]]></category>
		<guid isPermaLink="false">https://2021tomoziblog.com/?p=2923</guid>

					<description><![CDATA[前にグループライド行った時の人がメンテナンスをいろいろ教えてくれると言ってくれた。 年末だし、ちょうど謎の異音に悩まされていたので、お言葉に甘えることにした&#x2600;&#xfe0f; この時重大な故障があることを気 [&#8230;]]]></description>
										<content:encoded><![CDATA[
<p><a rel="noopener follow" target="_blank" href="https://2021tomoziblog.com/%e5%88%9d%e3%82%b0%e3%83%ab%e3%83%bc%e3%83%97%e3%83%a9%e3%82%a4%e3%83%89%e3%80%90%e3%83%9f%e3%83%8b%e3%83%99%e3%83%ad%e3%81%a8%e3%83%ad%e3%83%bc%e3%83%89%e3%83%90%e3%82%a4%e3%82%af%e3%81%a7%e3%80%91/">前にグループライド</a>行った時の人がメンテナンスをいろいろ教えてくれると言ってくれた。</p>



<p>年末だし、ちょうど謎の異音に悩まされていたので、お言葉に甘えることにした&#x2600;&#xfe0f;</p>



<p>この時重大な故障があることを気づいていない。</p>



<figure class="wp-block-image size-large"><img loading="lazy" decoding="async" width="1024" height="768" src="https://2021tomoziblog.com/wp-content/uploads/2023/12/DSC_0630-1024x768.jpg" alt="" class="wp-image-2994" srcset="https://2021tomoziblog.com/wp-content/uploads/2023/12/DSC_0630-1024x768.jpg 1024w, https://2021tomoziblog.com/wp-content/uploads/2023/12/DSC_0630-300x225.jpg 300w, https://2021tomoziblog.com/wp-content/uploads/2023/12/DSC_0630-768x576.jpg 768w, https://2021tomoziblog.com/wp-content/uploads/2023/12/DSC_0630-1536x1152.jpg 1536w, https://2021tomoziblog.com/wp-content/uploads/2023/12/DSC_0630-2048x1536.jpg 2048w" sizes="auto, (max-width: 1024px) 100vw, 1024px" /></figure>



<p>この超軽量ロードバイクに乗っている、自転車いじり20年以上のオタクな面白いおじさんだ。</p>



<p>おじさんの自転車工具&amp;パーツが無限に出てくる部屋紹介の後に（エッ◯なフィギュアもｗ）メンテナンス講座が始まった&#x2600;&#xfe0f;</p>




  <div id="toc" class="toc tnt-number toc-center tnt-number border-element"><input type="checkbox" class="toc-checkbox" id="toc-checkbox-10" checked><label class="toc-title" for="toc-checkbox-10">目次</label>
    <div class="toc-content">
    <ol class="toc-list open"><li><a href="#toc1" tabindex="0">ミニベロの状態</a></li><li><a href="#toc2" tabindex="0">メンテナンス講座</a></li><li><a href="#toc3" tabindex="0">重大な修復すべき場所発覚</a></li><li><a href="#toc4" tabindex="0">ちなみにおじさんのニューギヤ</a></li></ol>
    </div>
  </div>

<h2 class="wp-block-heading"><span id="toc1">ミニベロの状態</span></h2>



<p>愛車DAHON Dash P8は5年くらい乗ってる。通勤で4kmくらいと休日も乗っている。雨に降られることもしばしば。</p>



<p>もちろん我流なりにメンテナンスやカスタムを施している。</p>



<p>ヘッドパーツ以外はメンテナンスしている。</p>



<p>最近は乗った状態でペダルを回すと異音が発生しいていた。ペダルが怪しいと思い<a rel="noopener follow" target="_blank" href="https://2021tomoziblog.com/%e6%b7%b1%e5%a4%9c%e3%81%ae%e3%83%9a%e3%83%80%e3%83%ab%e3%83%a1%e3%83%b3%e3%83%86%e3%83%8a%e3%83%b3%e3%82%b9%e3%81%a8%e8%a8%80%e3%81%86%e9%8d%9b%e9%8c%ac/">メンテナンスした</a>。</p>



<p>おじさんから漕いでるときチェーンが左右に暴れていると指摘されてる。</p>



<p>要はドライブトレインに何か異常がある状態。</p>



<h2 class="wp-block-heading"><span id="toc2">メンテナンス講座</span></h2>



<figure class="wp-block-image size-large"><img loading="lazy" decoding="async" width="1024" height="768" src="https://2021tomoziblog.com/wp-content/uploads/2023/12/DSC_0604-1024x768.jpg" alt="" class="wp-image-2996" srcset="https://2021tomoziblog.com/wp-content/uploads/2023/12/DSC_0604-1024x768.jpg 1024w, https://2021tomoziblog.com/wp-content/uploads/2023/12/DSC_0604-300x225.jpg 300w, https://2021tomoziblog.com/wp-content/uploads/2023/12/DSC_0604-768x576.jpg 768w, https://2021tomoziblog.com/wp-content/uploads/2023/12/DSC_0604-1536x1152.jpg 1536w, https://2021tomoziblog.com/wp-content/uploads/2023/12/DSC_0604-2048x1536.jpg 2048w" sizes="auto, (max-width: 1024px) 100vw, 1024px" /></figure>



<p>スタンドいいな♪スゲー使いやすい&#x2600;&#xfe0f;</p>



<p>細かい工程などは他を見ていただいて、ポイントを書いていきます。</p>



<figure class="wp-block-image size-large"><img loading="lazy" decoding="async" width="1024" height="768" src="https://2021tomoziblog.com/wp-content/uploads/2023/12/DSC_0607-1024x768.jpg" alt="" class="wp-image-2997" srcset="https://2021tomoziblog.com/wp-content/uploads/2023/12/DSC_0607-1024x768.jpg 1024w, https://2021tomoziblog.com/wp-content/uploads/2023/12/DSC_0607-300x225.jpg 300w, https://2021tomoziblog.com/wp-content/uploads/2023/12/DSC_0607-768x576.jpg 768w, https://2021tomoziblog.com/wp-content/uploads/2023/12/DSC_0607-1536x1152.jpg 1536w, https://2021tomoziblog.com/wp-content/uploads/2023/12/DSC_0607-2048x1536.jpg 2048w" sizes="auto, (max-width: 1024px) 100vw, 1024px" /></figure>



<p><strong>まずはBBから</strong>、左から開ける。</p>



<p>力がかかるため、地面に自転車おく。</p>



<p>固いはずなので（緩ければ締め不足、それは剛性も落ちる）工具をしっかり抑えてプラハンマーで工具を小刻みに衝撃をあたえて緩める。（なめずらくなる）</p>



<figure class="wp-block-image size-large"><img loading="lazy" decoding="async" width="1024" height="768" src="https://2021tomoziblog.com/wp-content/uploads/2023/12/DSC_0606-1024x768.jpg" alt="" class="wp-image-2998" srcset="https://2021tomoziblog.com/wp-content/uploads/2023/12/DSC_0606-1024x768.jpg 1024w, https://2021tomoziblog.com/wp-content/uploads/2023/12/DSC_0606-300x225.jpg 300w, https://2021tomoziblog.com/wp-content/uploads/2023/12/DSC_0606-768x576.jpg 768w, https://2021tomoziblog.com/wp-content/uploads/2023/12/DSC_0606-1536x1152.jpg 1536w, https://2021tomoziblog.com/wp-content/uploads/2023/12/DSC_0606-2048x1536.jpg 2048w" sizes="auto, (max-width: 1024px) 100vw, 1024px" /></figure>



<figure class="wp-block-image size-large"><img loading="lazy" decoding="async" width="1024" height="768" src="https://2021tomoziblog.com/wp-content/uploads/2023/12/DSC_0608-1024x768.jpg" alt="" class="wp-image-2999" srcset="https://2021tomoziblog.com/wp-content/uploads/2023/12/DSC_0608-1024x768.jpg 1024w, https://2021tomoziblog.com/wp-content/uploads/2023/12/DSC_0608-300x225.jpg 300w, https://2021tomoziblog.com/wp-content/uploads/2023/12/DSC_0608-768x576.jpg 768w, https://2021tomoziblog.com/wp-content/uploads/2023/12/DSC_0608-1536x1152.jpg 1536w, https://2021tomoziblog.com/wp-content/uploads/2023/12/DSC_0608-2048x1536.jpg 2048w" sizes="auto, (max-width: 1024px) 100vw, 1024px" /></figure>



<p>グリスは外のふちに滲み出るくらいつける。</p>



<p><strong>次はシュー交換</strong></p>



<p>シューはゴムで、ゴムは一定期間過ぎると固くなるそうだ、固くなるとリムを傷つける。</p>



<p>シューの位置固定はリムにつけた状態で固定する。</p>



<p>拘束バンド等でブレーキレバー固定すればやりやすい。</p>



<p><strong>リム</strong>（車輪のブレーキシューがあたるとこ）の磨き方。</p>



<p>自転車を上下反対にして、400番と800番のサウンドペーパーをリムにあて、車輪を回すだけ。</p>



<figure class="wp-block-image size-large"><img loading="lazy" decoding="async" width="1024" height="768" src="https://2021tomoziblog.com/wp-content/uploads/2023/12/DSC_0625-1024x768.jpg" alt="" class="wp-image-3001" srcset="https://2021tomoziblog.com/wp-content/uploads/2023/12/DSC_0625-1024x768.jpg 1024w, https://2021tomoziblog.com/wp-content/uploads/2023/12/DSC_0625-300x225.jpg 300w, https://2021tomoziblog.com/wp-content/uploads/2023/12/DSC_0625-768x576.jpg 768w, https://2021tomoziblog.com/wp-content/uploads/2023/12/DSC_0625-1536x1152.jpg 1536w, https://2021tomoziblog.com/wp-content/uploads/2023/12/DSC_0625-2048x1536.jpg 2048w" sizes="auto, (max-width: 1024px) 100vw, 1024px" /></figure>



<p><strong>ビックプーリー</strong>を1個もらった&#x2600;&#xfe0f;</p>




<a rel="noopener nofollow" target="_blank" href="https://amzn.to/3tTi8DJ" title="https://amzn.to/3tTi8DJ" class="blogcard-wrap external-blogcard-wrap a-wrap cf"><div class="blogcard external-blogcard eb-left cf"><div class="blogcard-label external-blogcard-label"><span class="fa"></span></div><figure class="blogcard-thumbnail external-blogcard-thumbnail"><img loading="lazy" decoding="async" src="https://s.wordpress.com/mshots/v1/https%3A%2F%2Famzn.to%2F3tTi8DJ?w=320&#038;h=180" alt="" class="blogcard-thumb-image external-blogcard-thumb-image" width="320" height="180" /></figure><div class="blogcard-content external-blogcard-content"><div class="blogcard-title external-blogcard-title">https://amzn.to/3tTi8DJ</div><div class="blogcard-snippet external-blogcard-snippet"></div></div><div class="blogcard-footer external-blogcard-footer cf"><div class="blogcard-site external-blogcard-site"><div class="blogcard-favicon external-blogcard-favicon"><img loading="lazy" decoding="async" src="https://www.google.com/s2/favicons?domain=https://amzn.to/3tTi8DJ" alt="" class="blogcard-favicon-image external-blogcard-favicon-image" width="16" height="16" /></div><div class="blogcard-domain external-blogcard-domain">amzn.to</div></div></div></div></a>



<p>マイクロヒーロー12インチ、ナローワイド、セラミックベアリングです。</p>



<p>チェーンの角度をやわらげて抵抗を少なくし、セラミックベアリングが抵抗を少なくする。もちろん２個の方が抵抗少なくなるようだ。</p>



<p>もっと言うともっと大きい方が角度をやわらげて抵抗少なくできる。ただあまり大き過ぎると小径車は地面に剃っちゃう(^_^;)</p>



<figure class="wp-block-image size-large"><img loading="lazy" decoding="async" width="1024" height="768" src="https://2021tomoziblog.com/wp-content/uploads/2023/12/dsc_0626373758312457578298-1024x768.jpg" alt="" class="wp-image-3004" srcset="https://2021tomoziblog.com/wp-content/uploads/2023/12/dsc_0626373758312457578298-1024x768.jpg 1024w, https://2021tomoziblog.com/wp-content/uploads/2023/12/dsc_0626373758312457578298-300x225.jpg 300w, https://2021tomoziblog.com/wp-content/uploads/2023/12/dsc_0626373758312457578298-768x576.jpg 768w, https://2021tomoziblog.com/wp-content/uploads/2023/12/dsc_0626373758312457578298-1536x1152.jpg 1536w, https://2021tomoziblog.com/wp-content/uploads/2023/12/dsc_0626373758312457578298.jpg 2000w" sizes="auto, (max-width: 1024px) 100vw, 1024px" /></figure>



<figure class="wp-block-image"><img loading="lazy" decoding="async" width="1024" height="768" src="https://2021tomoziblog.com/wp-content/uploads/2023/12/dsc_06272052680092555100189-1024x768.jpg" alt="" class="wp-image-3003" srcset="https://2021tomoziblog.com/wp-content/uploads/2023/12/dsc_06272052680092555100189-1024x768.jpg 1024w, https://2021tomoziblog.com/wp-content/uploads/2023/12/dsc_06272052680092555100189-300x225.jpg 300w, https://2021tomoziblog.com/wp-content/uploads/2023/12/dsc_06272052680092555100189-768x576.jpg 768w, https://2021tomoziblog.com/wp-content/uploads/2023/12/dsc_06272052680092555100189-1536x1152.jpg 1536w, https://2021tomoziblog.com/wp-content/uploads/2023/12/dsc_06272052680092555100189.jpg 2000w" sizes="auto, (max-width: 1024px) 100vw, 1024px" /></figure>



<p><strong>シフトインナーケーブル</strong>が端ほつれているのをハンダつけしてもらった。</p>



<figure class="wp-block-image size-large"><img loading="lazy" decoding="async" width="1024" height="768" src="https://2021tomoziblog.com/wp-content/uploads/2023/12/dsc_06286044227166544911247-1024x768.jpg" alt="" class="wp-image-3005" srcset="https://2021tomoziblog.com/wp-content/uploads/2023/12/dsc_06286044227166544911247-1024x768.jpg 1024w, https://2021tomoziblog.com/wp-content/uploads/2023/12/dsc_06286044227166544911247-300x225.jpg 300w, https://2021tomoziblog.com/wp-content/uploads/2023/12/dsc_06286044227166544911247-768x576.jpg 768w, https://2021tomoziblog.com/wp-content/uploads/2023/12/dsc_06286044227166544911247-1536x1152.jpg 1536w, https://2021tomoziblog.com/wp-content/uploads/2023/12/dsc_06286044227166544911247.jpg 2000w" sizes="auto, (max-width: 1024px) 100vw, 1024px" /></figure>



<p>圧縮チューブもつけてもらいコーティングしてくれた。火で炙り圧縮する仕組み。</p>



<h2 class="wp-block-heading"><span id="toc3">重大な修復すべき場所発覚</span></h2>



<figure class="wp-block-video"><video height="1080" style="aspect-ratio: 1920 / 1080;" width="1920" controls src="https://2021tomoziblog.com/wp-content/uploads/2023/12/MOV_0605.mp4"></video></figure>



<p>冒頭でも少し書きましたが、チェーンリングが外側に曲っているのが解るでしょうか。</p>



<figure class="wp-block-image size-large"><img loading="lazy" decoding="async" width="1024" height="768" src="https://2021tomoziblog.com/wp-content/uploads/2023/12/dsc_06192104496590563386879-1024x768.jpg" alt="" class="wp-image-3009" srcset="https://2021tomoziblog.com/wp-content/uploads/2023/12/dsc_06192104496590563386879-1024x768.jpg 1024w, https://2021tomoziblog.com/wp-content/uploads/2023/12/dsc_06192104496590563386879-300x225.jpg 300w, https://2021tomoziblog.com/wp-content/uploads/2023/12/dsc_06192104496590563386879-768x576.jpg 768w, https://2021tomoziblog.com/wp-content/uploads/2023/12/dsc_06192104496590563386879-1536x1152.jpg 1536w, https://2021tomoziblog.com/wp-content/uploads/2023/12/dsc_06192104496590563386879.jpg 2000w" sizes="auto, (max-width: 1024px) 100vw, 1024px" /></figure>



<figure class="wp-block-image"><img loading="lazy" decoding="async" width="1024" height="768" src="https://2021tomoziblog.com/wp-content/uploads/2023/12/dsc_06093398986391429536348-1024x768.jpg" alt="" class="wp-image-3008" srcset="https://2021tomoziblog.com/wp-content/uploads/2023/12/dsc_06093398986391429536348-1024x768.jpg 1024w, https://2021tomoziblog.com/wp-content/uploads/2023/12/dsc_06093398986391429536348-300x225.jpg 300w, https://2021tomoziblog.com/wp-content/uploads/2023/12/dsc_06093398986391429536348-768x576.jpg 768w, https://2021tomoziblog.com/wp-content/uploads/2023/12/dsc_06093398986391429536348-1536x1152.jpg 1536w, https://2021tomoziblog.com/wp-content/uploads/2023/12/dsc_06093398986391429536348.jpg 2000w" sizes="auto, (max-width: 1024px) 100vw, 1024px" /></figure>



<p>数ミリの話だけど、チェーンをつけるとすごくぶれてるように見える(^_^;)</p>



<p>トルクレンチを貸してくれて、チェーンリングを８Nでトルク管理（これ重要！材質によって違います）してつけたらマシになったけど、やはりぶれている。</p>



<p>チェーンリング交換するしかない(^_^;)</p>



<p>おじさんにメンテナンス講座してもらわなければ気づかなっかった。感謝&#x2728;</p>



<p>2年前に骨折するくらいの事故にあっているのでそれのせいかもしれない。（いつ曲がったか解らないが2年間気づかないてヤバい(^_^;)）</p>



<p>この時異常はこれだけでないと思っていなかった・・・<a rel="follow noopener" target="_blank" href="https://2021tomoziblog.com/%e6%9b%b2%e3%81%8c%e3%81%a3%e3%81%9f%e3%83%81%e3%82%a7%e3%83%bc%e3%83%b3%e3%83%aa%e3%83%b3%e3%82%b0%e3%82%92%e4%ba%a4%e6%8f%9b%e3%80%81%e6%9b%b2%e3%81%8c%e3%81%a3%e3%81%9f%e3%81%ae%e3%81%af%e3%81%9d/">続く</a></p>



<h2 class="wp-block-heading"><span id="toc4">ちなみにおじさんのニューギヤ</span></h2>



<figure class="wp-block-image size-large"><img loading="lazy" decoding="async" width="1024" height="691" src="https://2021tomoziblog.com/wp-content/uploads/2023/12/image_editor_output_image-1951188923-17026899730442529724067579966344-1024x691.jpg" alt="" class="wp-image-3010" srcset="https://2021tomoziblog.com/wp-content/uploads/2023/12/image_editor_output_image-1951188923-17026899730442529724067579966344-1024x691.jpg 1024w, https://2021tomoziblog.com/wp-content/uploads/2023/12/image_editor_output_image-1951188923-17026899730442529724067579966344-300x202.jpg 300w, https://2021tomoziblog.com/wp-content/uploads/2023/12/image_editor_output_image-1951188923-17026899730442529724067579966344-768x518.jpg 768w, https://2021tomoziblog.com/wp-content/uploads/2023/12/image_editor_output_image-1951188923-17026899730442529724067579966344-1536x1036.jpg 1536w, https://2021tomoziblog.com/wp-content/uploads/2023/12/image_editor_output_image-1951188923-17026899730442529724067579966344.jpg 1999w" sizes="auto, (max-width: 1024px) 100vw, 1024px" /></figure>



<p>ミニベロです。ternのサージュ&#x2600;&#xfe0f;カーボンをホイールからシートポスト等ゴリゴリつけて、エクステイションブレーキレバーなんて珍しいブレーキの延長部品をつけている。</p>



<p>まだまだ、改造途中である。笑</p>




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		<post-id xmlns="com-wordpress:feed-additions:1">2923</post-id>	</item>
		<item>
		<title>膝痛対策ミニベロ乗りの私の場合</title>
		<link>https://2021tomoziblog.com/%e8%86%9d%e7%97%9b%e5%af%be%e7%ad%96%e3%83%9f%e3%83%8b%e3%83%99%e3%83%ad%e4%b9%97%e3%82%8a%e3%81%ae%e7%a7%81%e3%81%ae%e5%a0%b4%e5%90%88/</link>
					<comments>https://2021tomoziblog.com/%e8%86%9d%e7%97%9b%e5%af%be%e7%ad%96%e3%83%9f%e3%83%8b%e3%83%99%e3%83%ad%e4%b9%97%e3%82%8a%e3%81%ae%e7%a7%81%e3%81%ae%e5%a0%b4%e5%90%88/#respond</comments>
		
		<dc:creator><![CDATA[Tomozi2012]]></dc:creator>
		<pubDate>Sun, 26 Nov 2023 13:38:22 +0000</pubDate>
				<category><![CDATA[自転車]]></category>
		<category><![CDATA[Dahon dash P8]]></category>
		<category><![CDATA[ペダリング]]></category>
		<category><![CDATA[ポジション]]></category>
		<category><![CDATA[ミニベロ]]></category>
		<category><![CDATA[奥多摩]]></category>
		<category><![CDATA[折り畳み自転車]]></category>
		<category><![CDATA[楕円チェーンリング]]></category>
		<category><![CDATA[膝]]></category>
		<category><![CDATA[膝痛]]></category>
		<guid isPermaLink="false">https://2021tomoziblog.com/?p=2763</guid>

					<description><![CDATA[9月にロングライド行ったときに、膝を痛めてしまった。原因と対策をミニベロ乗りの視点から考えてみた。 目次 膝のどこが痛くなったのか原因対策 膝のどこが痛くなったのか 右足 前もも膝側だけ、関節でなくそこの筋肉。関節でなく [&#8230;]]]></description>
										<content:encoded><![CDATA[
<p><a rel="noopener follow" target="_blank" href="https://2021tomoziblog.com/%e3%83%9f%e3%83%8b%e3%83%99%e3%83%ad%e3%81%a7%e8%a1%8c%e3%81%8f%e4%b8%89%e6%b5%a6%e5%8d%8a%e5%b3%b6%e3%81%90%e3%82%8b%e3%82%8a%e5%89%8d%e7%b7%a8/">9月にロングライド</a>行ったときに、膝を痛めてしまった。原因と対策をミニベロ乗りの視点から考えてみた。</p>




  <div id="toc" class="toc tnt-number toc-center tnt-number border-element"><input type="checkbox" class="toc-checkbox" id="toc-checkbox-12" checked><label class="toc-title" for="toc-checkbox-12">目次</label>
    <div class="toc-content">
    <ol class="toc-list open"><li><a href="#toc1" tabindex="0">膝のどこが痛くなったのか</a></li><li><a href="#toc2" tabindex="0">原因</a></li><li><a href="#toc3" tabindex="0">対策</a></li></ol>
    </div>
  </div>

<h2 class="wp-block-heading"><span id="toc1">膝のどこが痛くなったのか</span></h2>



<p>右足 前もも膝側だけ、関節でなくそこの筋肉。関節でなくてよかったです。</p>



<p>82kmほど走ったのですが70kmくらいからいたくなった。</p>



<h2 class="wp-block-heading"><span id="toc2">原因</span></h2>



<figure class="wp-block-image size-large"><img loading="lazy" decoding="async" width="1024" height="768" src="https://2021tomoziblog.com/wp-content/uploads/2023/09/DSC_0131-1024x768.jpg" alt="" class="wp-image-2498" srcset="https://2021tomoziblog.com/wp-content/uploads/2023/09/DSC_0131-1024x768.jpg 1024w, https://2021tomoziblog.com/wp-content/uploads/2023/09/DSC_0131-300x225.jpg 300w, https://2021tomoziblog.com/wp-content/uploads/2023/09/DSC_0131-768x576.jpg 768w, https://2021tomoziblog.com/wp-content/uploads/2023/09/DSC_0131-1536x1152.jpg 1536w, https://2021tomoziblog.com/wp-content/uploads/2023/09/DSC_0131-2048x1536.jpg 2048w" sizes="auto, (max-width: 1024px) 100vw, 1024px" /></figure>



<p>輪行から解除した時にサドルの高さを低くしてしまったことです。ステムより低くなってる。足は短い方だけど、ここまででないよ(^_^;)</p>



<p>後ペダリングのしかた。右足ばかりで回してしまってる。それと、ペダル踏み始めが時計の0時からスタートしてない。2時くらいからしてた。</p>



<h2 class="wp-block-heading"><span id="toc3">対策</span></h2>



<p>まずはサドルの高さ。ビンディングペダルで言うビンディングのところに足を起き、膝が30度になる所らしい。</p>



<p>または、ペダルに足のかかとを置き、膝が真っ直ぐになる所。</p>



<p>30度と言うのがよくわからないので、かかと膝真っ直ぐしてから膝30度で測った。</p>



<p>なおかつ、ブルホーンバーのフラット部分を持って、前傾姿勢になりすぎず、背筋が伸びるところにサドルを定めた。</p>



<p>ミニベロを折り畳だ時にサドル高が変わりやすいので、目印もつけた。</p>



<figure class="wp-block-image size-large"><img loading="lazy" decoding="async" width="1024" height="768" src="https://2021tomoziblog.com/wp-content/uploads/2023/11/image_editor_output_image-1239483107-1700823292436-1024x768.jpg" alt="" class="wp-image-2918" srcset="https://2021tomoziblog.com/wp-content/uploads/2023/11/image_editor_output_image-1239483107-1700823292436-1024x768.jpg 1024w, https://2021tomoziblog.com/wp-content/uploads/2023/11/image_editor_output_image-1239483107-1700823292436-300x225.jpg 300w, https://2021tomoziblog.com/wp-content/uploads/2023/11/image_editor_output_image-1239483107-1700823292436-768x576.jpg 768w, https://2021tomoziblog.com/wp-content/uploads/2023/11/image_editor_output_image-1239483107-1700823292436-1536x1152.jpg 1536w, https://2021tomoziblog.com/wp-content/uploads/2023/11/image_editor_output_image-1239483107-1700823292436-2048x1536.jpg 2048w" sizes="auto, (max-width: 1024px) 100vw, 1024px" /><figcaption class="wp-element-caption">改善後</figcaption></figure>



<figure class="wp-block-image size-large"><img loading="lazy" decoding="async" width="1024" height="768" src="https://2021tomoziblog.com/wp-content/uploads/2023/11/DSC_0485-1024x768.jpg" alt="" class="wp-image-2919" srcset="https://2021tomoziblog.com/wp-content/uploads/2023/11/DSC_0485-1024x768.jpg 1024w, https://2021tomoziblog.com/wp-content/uploads/2023/11/DSC_0485-300x225.jpg 300w, https://2021tomoziblog.com/wp-content/uploads/2023/11/DSC_0485-768x576.jpg 768w, https://2021tomoziblog.com/wp-content/uploads/2023/11/DSC_0485-1536x1152.jpg 1536w, https://2021tomoziblog.com/wp-content/uploads/2023/11/DSC_0485-2048x1536.jpg 2048w" sizes="auto, (max-width: 1024px) 100vw, 1024px" /><figcaption class="wp-element-caption">改善後</figcaption></figure>



<figure class="wp-block-image size-large"><img loading="lazy" decoding="async" width="1024" height="768" src="https://2021tomoziblog.com/wp-content/uploads/2023/09/DSC_0131-1024x768.jpg" alt="" class="wp-image-2498" srcset="https://2021tomoziblog.com/wp-content/uploads/2023/09/DSC_0131-1024x768.jpg 1024w, https://2021tomoziblog.com/wp-content/uploads/2023/09/DSC_0131-300x225.jpg 300w, https://2021tomoziblog.com/wp-content/uploads/2023/09/DSC_0131-768x576.jpg 768w, https://2021tomoziblog.com/wp-content/uploads/2023/09/DSC_0131-1536x1152.jpg 1536w, https://2021tomoziblog.com/wp-content/uploads/2023/09/DSC_0131-2048x1536.jpg 2048w" sizes="auto, (max-width: 1024px) 100vw, 1024px" /><figcaption class="wp-element-caption">改善前</figcaption></figure>



<p>ちょっと高くしました。</p>



<p>そして、ペダリング。悪いクセが2つある。</p>



<p>右足ばかりでペダリングしてしまうことと、</p>



<p>時計で言う2時のところから力を加えることです。</p>



<p>これらを0時から前に力を加え円を書くイメージでしっかり反対の足にスイッチする。</p>



<p>実際に<a rel="noopener follow" target="_blank" href="https://2021tomoziblog.com/%e7%b4%85%e8%91%89%e7%8b%a9%e3%82%8a%e3%83%a9%e3%82%a4%e3%83%89%e2%99%aa%e3%81%a9%e3%81%93%e3%82%8d%e3%81%a7%e3%81%aa%e3%81%84%e7%9c%9f%e3%81%a3%e6%9a%97%e9%97%87%e3%81%a0%ef%bc%81%e6%88%91%e3%81%8c/">この前の暗闇ヒルクライム</a>で役に立ったｗ</p>



<p>基本をしっかりする。</p>



<p>こうして乗るようになり、70kmまではまだ走れてないけど、膝痛くなってません。</p>



<p>ポジションとペダリングは大切ですね。</p>



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		<title>ミニベロのギヤ比を考える【チェーン長】</title>
		<link>https://2021tomoziblog.com/%e3%83%9f%e3%83%8b%e3%83%99%e3%83%ad%e3%81%ae%e3%82%ae%e3%83%a4%e6%af%94%e3%82%92%e8%80%83%e3%81%88%e3%82%8b%e3%80%90%e3%83%81%e3%82%a7%e3%83%bc%e3%83%b3%e9%95%b7%e3%80%91/</link>
					<comments>https://2021tomoziblog.com/%e3%83%9f%e3%83%8b%e3%83%99%e3%83%ad%e3%81%ae%e3%82%ae%e3%83%a4%e6%af%94%e3%82%92%e8%80%83%e3%81%88%e3%82%8b%e3%80%90%e3%83%81%e3%82%a7%e3%83%bc%e3%83%b3%e9%95%b7%e3%80%91/#comments</comments>
		
		<dc:creator><![CDATA[Tomozi2012]]></dc:creator>
		<pubDate>Tue, 01 Nov 2022 11:02:26 +0000</pubDate>
				<category><![CDATA[カスタム]]></category>
		<category><![CDATA[自転車]]></category>
		<category><![CDATA[46t]]></category>
		<category><![CDATA[Dahon dash P8]]></category>
		<category><![CDATA[ギヤ比]]></category>
		<category><![CDATA[チェーンリング]]></category>
		<category><![CDATA[チェーン長]]></category>
		<category><![CDATA[フロントシングル]]></category>
		<category><![CDATA[ミニベロ]]></category>
		<category><![CDATA[折り畳み自転車]]></category>
		<category><![CDATA[改造]]></category>
		<category><![CDATA[楕円]]></category>
		<category><![CDATA[楕円チェーンリング]]></category>
		<category><![CDATA[魔改造]]></category>
		<guid isPermaLink="false">https://2021tomoziblog.com/?p=1239</guid>

					<description><![CDATA[愛車DAHON DASH P8改のギア比は フロントシングル54t（楕円+-3）、リヤが11ｰ46t11速で トップ楕円のため55tと仮定してギヤ比5、ロー1.19 トップの高いギヤ比とローの低いギヤ比で平地でも山でもい [&#8230;]]]></description>
										<content:encoded><![CDATA[
<p>愛車DAHON DASH P8改のギア比は</p>



<p>フロントシングル54t（楕円+-3）、リヤが11ｰ46t11速で</p>



<p>トップ楕円のため55tと仮定してギヤ比5、ロー1.19</p>



<p>トップの高いギヤ比とローの低いギヤ比で平地でも山でもいける、キャンプ道具も積めるようにした。</p>



<p>オールラウンドに対応していい感じになっている。ヒルクライムで獲得標高1000mとかいける。早くはないけど。</p>



<p>ただ1つ気になっているのが<strong>チェーンが足りず足してる</strong>ことだ。コストかかるし、重くなるし、強度は大丈夫だろうけど。チェーン２本買うのもね。</p>



<p>チェーンを1本で納めるにはギヤ比を考えてみなければ。</p>




  <div id="toc" class="toc tnt-number toc-center tnt-number border-element"><input type="checkbox" class="toc-checkbox" id="toc-checkbox-14" checked><label class="toc-title" for="toc-checkbox-14">目次</label>
    <div class="toc-content">
    <ol class="toc-list open"><li><a href="#toc1" tabindex="0">現状を確認</a></li><li><a href="#toc2" tabindex="0">ギヤ比を考える</a></li><li><a href="#toc3" tabindex="0">チェーンの長さ</a></li><li><a href="#toc4" tabindex="0">チェーンを探してみる</a></li><li><a href="#toc5" tabindex="0">まとめ</a></li></ol>
    </div>
  </div>

<h2 class="wp-block-heading"><span id="toc1">現状を確認</span></h2>



<p>フロントチェーンリングは楕円54t+-3にしてリヤを11速の11-46tです。</p>



<figure class="wp-block-image size-large"><img loading="lazy" decoding="async" width="1024" height="576" src="https://2021tomoziblog.com/wp-content/uploads/2022/10/image_editor_output_image-1126813545-1665951524250-1024x576.jpg" alt="" class="wp-image-1241" srcset="https://2021tomoziblog.com/wp-content/uploads/2022/10/image_editor_output_image-1126813545-1665951524250-1024x576.jpg 1024w, https://2021tomoziblog.com/wp-content/uploads/2022/10/image_editor_output_image-1126813545-1665951524250-300x169.jpg 300w, https://2021tomoziblog.com/wp-content/uploads/2022/10/image_editor_output_image-1126813545-1665951524250-768x432.jpg 768w, https://2021tomoziblog.com/wp-content/uploads/2022/10/image_editor_output_image-1126813545-1665951524250-1536x864.jpg 1536w, https://2021tomoziblog.com/wp-content/uploads/2022/10/image_editor_output_image-1126813545-1665951524250-2048x1152.jpg 2048w, https://2021tomoziblog.com/wp-content/uploads/2022/10/image_editor_output_image-1126813545-1665951524250-240x135.jpg 240w, https://2021tomoziblog.com/wp-content/uploads/2022/10/image_editor_output_image-1126813545-1665951524250-320x180.jpg 320w, https://2021tomoziblog.com/wp-content/uploads/2022/10/image_editor_output_image-1126813545-1665951524250-640x360.jpg 640w, https://2021tomoziblog.com/wp-content/uploads/2022/10/image_editor_output_image-1126813545-1665951524250-732x412.jpg 732w" sizes="auto, (max-width: 1024px) 100vw, 1024px" /></figure>



<p>※今回で初めて知ったけど今までチェーンリング楕円54t+-2tと思っていたけど、+-3tだった。だから最大仮想歯数は56tでなく57tだった。2年くらい勘違いしてたw</p>



<p>一番チェーンを張ってるところでチェーンの繋ぎ目を見てみる。</p>



<figure class="wp-block-image size-large"><img loading="lazy" decoding="async" width="1024" height="576" src="https://2021tomoziblog.com/wp-content/uploads/2022/10/image_editor_output_image-1125890024-1666002314450-1024x576.jpg" alt="" class="wp-image-1243" srcset="https://2021tomoziblog.com/wp-content/uploads/2022/10/image_editor_output_image-1125890024-1666002314450-1024x576.jpg 1024w, https://2021tomoziblog.com/wp-content/uploads/2022/10/image_editor_output_image-1125890024-1666002314450-300x169.jpg 300w, https://2021tomoziblog.com/wp-content/uploads/2022/10/image_editor_output_image-1125890024-1666002314450-768x432.jpg 768w, https://2021tomoziblog.com/wp-content/uploads/2022/10/image_editor_output_image-1125890024-1666002314450-1536x864.jpg 1536w, https://2021tomoziblog.com/wp-content/uploads/2022/10/image_editor_output_image-1125890024-1666002314450-2048x1152.jpg 2048w, https://2021tomoziblog.com/wp-content/uploads/2022/10/image_editor_output_image-1125890024-1666002314450-240x135.jpg 240w, https://2021tomoziblog.com/wp-content/uploads/2022/10/image_editor_output_image-1125890024-1666002314450-320x180.jpg 320w, https://2021tomoziblog.com/wp-content/uploads/2022/10/image_editor_output_image-1125890024-1666002314450-640x360.jpg 640w, https://2021tomoziblog.com/wp-content/uploads/2022/10/image_editor_output_image-1125890024-1666002314450-732x412.jpg 732w" sizes="auto, (max-width: 1024px) 100vw, 1024px" /></figure>



<p>ミッシングリンクとクイックリンクの間は4リンク分ギヤの歯が5つある。</p>



<p>チェーンを足さないで一本にするには単純に-5tすることになるのかな？そうすると52tだな。余裕をみてチェーン足したから52tでいけるかな？チェーンリングは1万以上するから確実にいきたい。</p>



<h2 class="wp-block-heading"><span id="toc2">ギヤ比を考える</span></h2>



<p>ギヤ比は今ので問題に思ってない。問題はチェーン長。でもそんなにスピードださないな。最大57tもフロントいらないのでは？と思った。</p>



<p>普段25km/hで出しても35km/hすんごい頑張って40km/hほぼ出ないし出さない。</p>



<p>フロント57tもいらない？リヤは46tいる。マジで登れなかった坂が登れた。</p>



<p>ではフロントどのくらいにするか。<a rel="noopener nofollow" target="_blank" href="http://www.program-lab.jp/archive/lab/ajax/grc2/index.html">自転車ギヤ比計算ツール</a>で計算してみた。</p>



<figure class="wp-block-image size-large"><img loading="lazy" decoding="async" width="1024" height="470" src="https://2021tomoziblog.com/wp-content/uploads/2022/10/image_editor_output_image666751764-1666068966260-1024x470.png" alt="" class="wp-image-1244" srcset="https://2021tomoziblog.com/wp-content/uploads/2022/10/image_editor_output_image666751764-1666068966260-1024x470.png 1024w, https://2021tomoziblog.com/wp-content/uploads/2022/10/image_editor_output_image666751764-1666068966260-300x138.png 300w, https://2021tomoziblog.com/wp-content/uploads/2022/10/image_editor_output_image666751764-1666068966260-768x353.png 768w, https://2021tomoziblog.com/wp-content/uploads/2022/10/image_editor_output_image666751764-1666068966260-1536x706.png 1536w, https://2021tomoziblog.com/wp-content/uploads/2022/10/image_editor_output_image666751764-1666068966260-2048x941.png 2048w" sizes="auto, (max-width: 1024px) 100vw, 1024px" /></figure>



<p>数字で視るとたいして変わらないものだなと思った。差は2km/hです。</p>



<p>ギヤ比でみても少ししか変わらない。</p>



<p>フロント50tを入れてみる。</p>



<figure class="wp-block-image size-large"><img loading="lazy" decoding="async" width="1024" height="476" src="https://2021tomoziblog.com/wp-content/uploads/2022/10/image_editor_output_image-1378741740-1666069324383-1024x476.png" alt="" class="wp-image-1245" srcset="https://2021tomoziblog.com/wp-content/uploads/2022/10/image_editor_output_image-1378741740-1666069324383-1024x476.png 1024w, https://2021tomoziblog.com/wp-content/uploads/2022/10/image_editor_output_image-1378741740-1666069324383-300x139.png 300w, https://2021tomoziblog.com/wp-content/uploads/2022/10/image_editor_output_image-1378741740-1666069324383-768x357.png 768w, https://2021tomoziblog.com/wp-content/uploads/2022/10/image_editor_output_image-1378741740-1666069324383-1536x714.png 1536w, https://2021tomoziblog.com/wp-content/uploads/2022/10/image_editor_output_image-1378741740-1666069324383-2048x951.png 2048w" sizes="auto, (max-width: 1024px) 100vw, 1024px" /></figure>



<figure class="wp-block-image size-large"><img loading="lazy" decoding="async" width="1024" height="468" src="https://2021tomoziblog.com/wp-content/uploads/2022/10/image_editor_output_image567445882-1666069742998-1024x468.png" alt="" class="wp-image-1246" srcset="https://2021tomoziblog.com/wp-content/uploads/2022/10/image_editor_output_image567445882-1666069742998-1024x468.png 1024w, https://2021tomoziblog.com/wp-content/uploads/2022/10/image_editor_output_image567445882-1666069742998-300x137.png 300w, https://2021tomoziblog.com/wp-content/uploads/2022/10/image_editor_output_image567445882-1666069742998-768x351.png 768w, https://2021tomoziblog.com/wp-content/uploads/2022/10/image_editor_output_image567445882-1666069742998-1536x702.png 1536w, https://2021tomoziblog.com/wp-content/uploads/2022/10/image_editor_output_image567445882-1666069742998-2048x936.png 2048w" sizes="auto, (max-width: 1024px) 100vw, 1024px" /></figure>



<p>さすがに結構差がある。50tはさすがに入れたくないかな。52tがベストに思える。問題は116リンクでおさまるかです。</p>



<p><strong>ネットで調べる</strong></p>



<p>調べると<a rel="noopener nofollow" target="_blank" href="https://minivelo.taje.net/2021/08/27/post-4859/">ミニベロ大好きさん</a>に興味深い記事があった。Twitterでミニベロのギヤ比を聞いてた。</p>



<p>私のギヤ比も載ってた。ちょっと嬉しい。</p>



<p>フロント52tあたりの人が多いな。楕円の50t+-3tでもいいかも。でも軽すぎないかな？うーん。</p>



<p>真円の52tもいいな。でもやっぱ楕円がいいな。今のところどちらもネットショップに在庫ある。</p>



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<p>RIDEA楕円チェーンリングはペダル踏んでて楕円の違和感が少ない。軽量。エアロ効果的なものがあり、ナローワイドでチェーン落ち少ない。そしてかっこいいw</p>



<p></p>



<h2 class="wp-block-heading"><span id="toc3">チェーンの長さ</span></h2>



<p>フロントもリヤもでかいギヤだと普通のチェーンは足りない。基本116リンクです。現在の愛車は120リンクです。4リンク足してます。</p>



<p>116リンクにおさめるにはフロント何tにするべきか？調べると<a rel="noopener nofollow" target="_blank" href="https://jitetan.com/chain_link.html">自転車探検</a>と言う便利なサイトがありました。</p>



<p>リヤは46tのままです。トップスピードはそんなにいらないが激坂は上るし荷物も積む。計算すると</p>



<figure class="wp-block-image size-large"><img loading="lazy" decoding="async" width="609" height="1024" src="https://2021tomoziblog.com/wp-content/uploads/2022/10/image_editor_output_image-2092251079-1666867480576-609x1024.png" alt="" class="wp-image-1272" srcset="https://2021tomoziblog.com/wp-content/uploads/2022/10/image_editor_output_image-2092251079-1666867480576-609x1024.png 609w, https://2021tomoziblog.com/wp-content/uploads/2022/10/image_editor_output_image-2092251079-1666867480576-178x300.png 178w, https://2021tomoziblog.com/wp-content/uploads/2022/10/image_editor_output_image-2092251079-1666867480576-768x1292.png 768w, https://2021tomoziblog.com/wp-content/uploads/2022/10/image_editor_output_image-2092251079-1666867480576-913x1536.png 913w, https://2021tomoziblog.com/wp-content/uploads/2022/10/image_editor_output_image-2092251079-1666867480576-1218x2048.png 1218w, https://2021tomoziblog.com/wp-content/uploads/2022/10/image_editor_output_image-2092251079-1666867480576.png 1440w" sizes="auto, (max-width: 609px) 100vw, 609px" /></figure>



<figure class="wp-block-image size-large"><img loading="lazy" decoding="async" width="612" height="1024" src="https://2021tomoziblog.com/wp-content/uploads/2022/10/image_editor_output_image-2127344877-1666867538690-612x1024.png" alt="" class="wp-image-1273" srcset="https://2021tomoziblog.com/wp-content/uploads/2022/10/image_editor_output_image-2127344877-1666867538690-612x1024.png 612w, https://2021tomoziblog.com/wp-content/uploads/2022/10/image_editor_output_image-2127344877-1666867538690-179x300.png 179w, https://2021tomoziblog.com/wp-content/uploads/2022/10/image_editor_output_image-2127344877-1666867538690-768x1285.png 768w, https://2021tomoziblog.com/wp-content/uploads/2022/10/image_editor_output_image-2127344877-1666867538690-918x1536.png 918w, https://2021tomoziblog.com/wp-content/uploads/2022/10/image_editor_output_image-2127344877-1666867538690-1224x2048.png 1224w, https://2021tomoziblog.com/wp-content/uploads/2022/10/image_editor_output_image-2127344877-1666867538690.png 1440w" sizes="auto, (max-width: 612px) 100vw, 612px" /></figure>



<figure class="wp-block-image size-large"><img loading="lazy" decoding="async" width="547" height="1024" src="https://2021tomoziblog.com/wp-content/uploads/2022/10/image_editor_output_image2114058201-1666867575025-547x1024.png" alt="" class="wp-image-1274" srcset="https://2021tomoziblog.com/wp-content/uploads/2022/10/image_editor_output_image2114058201-1666867575025-547x1024.png 547w, https://2021tomoziblog.com/wp-content/uploads/2022/10/image_editor_output_image2114058201-1666867575025-160x300.png 160w, https://2021tomoziblog.com/wp-content/uploads/2022/10/image_editor_output_image2114058201-1666867575025-768x1439.png 768w, https://2021tomoziblog.com/wp-content/uploads/2022/10/image_editor_output_image2114058201-1666867575025-820x1536.png 820w, https://2021tomoziblog.com/wp-content/uploads/2022/10/image_editor_output_image2114058201-1666867575025-1093x2048.png 1093w, https://2021tomoziblog.com/wp-content/uploads/2022/10/image_editor_output_image2114058201-1666867575025.png 1440w" sizes="auto, (max-width: 547px) 100vw, 547px" /></figure>



<p>最低でも118リンク必要でした。さすがに50t以下はないかな。チェーンを足さないといけないことになります。</p>



<h2 class="wp-block-heading"><span id="toc4">チェーンを探してみる</span></h2>



<p>ディラエースチェーンがコスパよくて気に入っていたが、他の候補も見てみる。</p>



<p>シマノ以外でチェーンと言えば、KMCと思って見たらあった。</p>




<a rel="noopener nofollow" target="_blank" href="https://amzn.to/3SaC5hu" title="Amazon.co.jp" class="blogcard-wrap external-blogcard-wrap a-wrap cf"><div class="blogcard external-blogcard eb-left cf"><div class="blogcard-label external-blogcard-label"><span class="fa"></span></div><figure class="blogcard-thumbnail external-blogcard-thumbnail"><img loading="lazy" decoding="async" src="https://s.wordpress.com/mshots/v1/https%3A%2F%2Famzn.to%2F3SaC5hu?w=320&#038;h=180" alt="" class="blogcard-thumb-image external-blogcard-thumb-image" width="320" height="180" /></figure><div class="blogcard-content external-blogcard-content"><div class="blogcard-title external-blogcard-title">Amazon.co.jp</div><div class="blogcard-snippet external-blogcard-snippet"></div></div><div class="blogcard-footer external-blogcard-footer cf"><div class="blogcard-site external-blogcard-site"><div class="blogcard-favicon external-blogcard-favicon"><img loading="lazy" decoding="async" src="https://www.google.com/s2/favicons?domain=https://amzn.to/3SaC5hu" alt="" class="blogcard-favicon-image external-blogcard-favicon-image" width="16" height="16" /></div><div class="blogcard-domain external-blogcard-domain">amzn.to</div></div></div></div></a>



<p>118リンクある。242g良いレビューも評価いい。高いけど。</p>



<p>KMCはシマノと提携してるってB4Cさんが<a rel="nofollow noopener" target="_blank" href="https://b4c.jp/kmc-dlc-chain/">言ってた。</a></p>



<h2 class="wp-block-heading"><span id="toc5">まとめ</span></h2>



<p>楕円50t+-3tが第一候補です。</p>



<p>楕円50tだけどペダルの重さは真円52tと変わらないと感じた。仮想最大歯数は53tだしね。</p>



<p>実際に40km/h以上も出さない。なので楕円54tもいらないことになる。</p>



<p>リヤ46tは必要。激坂これでいける。</p>



<figure class="wp-block-image size-large"><img loading="lazy" decoding="async" width="1024" height="519" src="https://2021tomoziblog.com/wp-content/uploads/2022/10/image_editor_output_image633761786-1667217834113-1024x519.png" alt="" class="wp-image-1275" srcset="https://2021tomoziblog.com/wp-content/uploads/2022/10/image_editor_output_image633761786-1667217834113-1024x519.png 1024w, https://2021tomoziblog.com/wp-content/uploads/2022/10/image_editor_output_image633761786-1667217834113-300x152.png 300w, https://2021tomoziblog.com/wp-content/uploads/2022/10/image_editor_output_image633761786-1667217834113-768x389.png 768w, https://2021tomoziblog.com/wp-content/uploads/2022/10/image_editor_output_image633761786-1667217834113-1536x778.png 1536w, https://2021tomoziblog.com/wp-content/uploads/2022/10/image_editor_output_image633761786-1667217834113-2048x1038.png 2048w" sizes="auto, (max-width: 1024px) 100vw, 1024px" /></figure>



<p>ローのギヤ比がなんと1.15どこでも行けそう&#x2600;&#xfe0f;</p>



<p>今のチェーンが伸びたときチェーンとチェーンリング交換しよう♪</p>



<p>あの激坂も挑戦しよいかな（元気な時に）</p>



<p><a rel="noopener follow" target="_blank" href="https://2021tomoziblog.com/%e8%b6%85%e6%bf%80%e5%9d%82%e3%82%92%e7%99%bb%e3%82%8b%e3%81%9f%e3%82%81%e3%81%ae%e3%82%ae%e3%83%a4%e6%af%94%e7%ad%89%e3%82%ab%e3%82%b9%e3%82%bf%e3%83%a0%e3%82%92%e8%80%83%e3%81%88%e3%82%8b%e3%80%90/">超激坂のためのギヤ比等カスタムを考える</a></p>



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		<title>【ミニベロ】楕円チェーンリングにカスタム</title>
		<link>https://2021tomoziblog.com/%e6%a5%95%e5%86%86%e3%83%81%e3%82%a7%e3%83%bc%e3%83%b3%e3%83%aa%e3%83%b3%e3%82%b0-54t-%e3%83%95%e3%83%ad%e3%83%b3%e3%83%88%e3%82%b7%e3%83%b3%e3%82%b0%e3%83%ab-%e3%82%ab%e3%82%b9%e3%82%bf%e3%83%a0/</link>
					<comments>https://2021tomoziblog.com/%e6%a5%95%e5%86%86%e3%83%81%e3%82%a7%e3%83%bc%e3%83%b3%e3%83%aa%e3%83%b3%e3%82%b0-54t-%e3%83%95%e3%83%ad%e3%83%b3%e3%83%88%e3%82%b7%e3%83%b3%e3%82%b0%e3%83%ab-%e3%82%ab%e3%82%b9%e3%82%bf%e3%83%a0/#respond</comments>
		
		<dc:creator><![CDATA[Tomozi2012]]></dc:creator>
		<pubDate>Mon, 13 Dec 2021 04:29:02 +0000</pubDate>
				<category><![CDATA[カスタム]]></category>
		<category><![CDATA[チェーンリング]]></category>
		<category><![CDATA[フロントシングル]]></category>
		<category><![CDATA[ミニベロ]]></category>
		<category><![CDATA[楕円]]></category>
		<category><![CDATA[楕円チェーンリング]]></category>
		<category><![CDATA[自転車]]></category>
		<guid isPermaLink="false">https://2021tomoziblog.com/?p=124</guid>

					<description><![CDATA[目次 楕円チェーンリング54tでフロントシングル ミニベロカスタム RIDEAラミフローなぜ楕円チェーンリングか！？なぜフロントシングルなのか！？必要な工具必要なパーツ交換方法まとめ 楕円チェーンリング54tでフロントシ [&#8230;]]]></description>
										<content:encoded><![CDATA[

  <div id="toc" class="toc tnt-number toc-center tnt-number border-element"><input type="checkbox" class="toc-checkbox" id="toc-checkbox-16" checked><label class="toc-title" for="toc-checkbox-16">目次</label>
    <div class="toc-content">
    <ol class="toc-list open"><li><a href="#toc1" tabindex="0">楕円チェーンリング54tでフロントシングル ミニベロカスタム RIDEAラミフロー</a></li><li><a href="#toc2" tabindex="0">なぜ楕円チェーンリングか！？</a></li><li><a href="#toc3" tabindex="0">なぜフロントシングルなのか！？</a></li><li><a href="#toc4" tabindex="0">必要な工具</a></li><li><a href="#toc5" tabindex="0">必要なパーツ</a></li><li><a href="#toc6" tabindex="0">交換方法</a></li><li><a href="#toc7" tabindex="0">まとめ</a></li></ol>
    </div>
  </div>

<h2 class="wp-block-heading"><span id="toc1">楕円チェーンリング54tでフロントシングル ミニベロカスタム RIDEAラミフロー</span></h2>



<p>フロントシングルで楕円形&amp;ナローワイドなミニベロカスタマイズ。歯数は54tで+-2です。RIDEAのラミフローです。</p>



<figure class="wp-block-image size-large"><img loading="lazy" decoding="async" width="1024" height="576" src="https://2021tomoziblog.com/wp-content/uploads/2021/11/DSC_0815-1024x576.jpg" alt="" class="wp-image-126" srcset="https://2021tomoziblog.com/wp-content/uploads/2021/11/DSC_0815-1024x576.jpg 1024w, https://2021tomoziblog.com/wp-content/uploads/2021/11/DSC_0815-300x169.jpg 300w, https://2021tomoziblog.com/wp-content/uploads/2021/11/DSC_0815-768x432.jpg 768w, https://2021tomoziblog.com/wp-content/uploads/2021/11/DSC_0815-1536x864.jpg 1536w, https://2021tomoziblog.com/wp-content/uploads/2021/11/DSC_0815-2048x1152.jpg 2048w, https://2021tomoziblog.com/wp-content/uploads/2021/11/DSC_0815-240x135.jpg 240w, https://2021tomoziblog.com/wp-content/uploads/2021/11/DSC_0815-320x180.jpg 320w, https://2021tomoziblog.com/wp-content/uploads/2021/11/DSC_0815-640x360.jpg 640w, https://2021tomoziblog.com/wp-content/uploads/2021/11/DSC_0815-732x412.jpg 732w" sizes="auto, (max-width: 1024px) 100vw, 1024px" /></figure>



<h2 class="wp-block-heading"><span id="toc2">なぜ楕円チェーンリングか！？</span></h2>



<figure class="wp-block-image size-large"><img loading="lazy" decoding="async" width="576" height="1024" src="https://2021tomoziblog.com/wp-content/uploads/2021/12/dsc_09196954058105328082905-576x1024.jpg" alt="" class="wp-image-127" srcset="https://2021tomoziblog.com/wp-content/uploads/2021/12/dsc_09196954058105328082905-576x1024.jpg 576w, https://2021tomoziblog.com/wp-content/uploads/2021/12/dsc_09196954058105328082905-169x300.jpg 169w, https://2021tomoziblog.com/wp-content/uploads/2021/12/dsc_09196954058105328082905-768x1365.jpg 768w, https://2021tomoziblog.com/wp-content/uploads/2021/12/dsc_09196954058105328082905-864x1536.jpg 864w, https://2021tomoziblog.com/wp-content/uploads/2021/12/dsc_09196954058105328082905-1152x2048.jpg 1152w, https://2021tomoziblog.com/wp-content/uploads/2021/12/dsc_09196954058105328082905-scaled.jpg 1440w" sizes="auto, (max-width: 576px) 100vw, 576px" /></figure>



<p>ミニベロでもロングライドで疲れないように。ペダルを回す時、死点のところで歯数が少なくなっているので効率がよい</p>



<h2 class="wp-block-heading"><span id="toc3">なぜフロントシングルなのか！？</span></h2>



<figure class="wp-block-image size-large"><img loading="lazy" decoding="async" width="1024" height="576" src="https://2021tomoziblog.com/wp-content/uploads/2021/12/DSC_0884-1024x576.jpg" alt="" class="wp-image-129" srcset="https://2021tomoziblog.com/wp-content/uploads/2021/12/DSC_0884-1024x576.jpg 1024w, https://2021tomoziblog.com/wp-content/uploads/2021/12/DSC_0884-300x169.jpg 300w, https://2021tomoziblog.com/wp-content/uploads/2021/12/DSC_0884-768x432.jpg 768w, https://2021tomoziblog.com/wp-content/uploads/2021/12/DSC_0884-1536x864.jpg 1536w, https://2021tomoziblog.com/wp-content/uploads/2021/12/DSC_0884-2048x1152.jpg 2048w, https://2021tomoziblog.com/wp-content/uploads/2021/12/DSC_0884-240x135.jpg 240w, https://2021tomoziblog.com/wp-content/uploads/2021/12/DSC_0884-320x180.jpg 320w, https://2021tomoziblog.com/wp-content/uploads/2021/12/DSC_0884-640x360.jpg 640w, https://2021tomoziblog.com/wp-content/uploads/2021/12/DSC_0884-732x412.jpg 732w" sizes="auto, (max-width: 1024px) 100vw, 1024px" /></figure>



<p>Dahon Dash P8はフロントディレイラー台座がありフロントダブルにしやすいのですが、フロントシングルにした理由は、</p>



<p>コスパがいい</p>



<p>フロントディレイラーとシフターと無しでいいのでその分軽量化できる。</p>



<p>ワイドレシオでいい。ミニベロでレース出ないから細かいギヤ設定がいらないと思った。むしろトップから2速目までとばしがち。</p>



<p>パーツが少なくなるので故障する確率が低くなる。</p>



<h2 class="wp-block-heading"><span id="toc4">必要な工具</span></h2>



<p>六角レンチ、チェーンリング回し（六角レンチでもいける場合あり）</p>



<h2 class="wp-block-heading"><span id="toc5">必要なパーツ</span></h2>



<p>チェーンリング:RIDEAラミフロー54t+-2 めちゃ探した。54tで楕円でナローワイドです。</p>



<p>※チェーンリングはアーム幅や５本アーム４本アームと交互性があります。ちなみに私はBCD130と5アーム</p>



<p>チェーンリングボルト:RIDEAのアルミチェーンリングボルト</p>



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<h2 class="wp-block-heading"><span id="toc6">交換方法</span></h2>



<p>まずチェーンをボトムブラケットあたりに引っかける。</p>



<p>チェーンリングを外す</p>



<p>新しいチェーンリングをつける。RIDEAのチェーンリングボルトは六角レンチだけでつけれました。</p>



<h2 class="wp-block-heading"><span id="toc7">まとめ</span></h2>



<figure class="wp-block-image size-large"><img loading="lazy" decoding="async" width="1024" height="576" src="https://2021tomoziblog.com/wp-content/uploads/2021/12/DSC_0942-1024x576.jpg" alt="" class="wp-image-130" srcset="https://2021tomoziblog.com/wp-content/uploads/2021/12/DSC_0942-1024x576.jpg 1024w, https://2021tomoziblog.com/wp-content/uploads/2021/12/DSC_0942-300x169.jpg 300w, https://2021tomoziblog.com/wp-content/uploads/2021/12/DSC_0942-768x432.jpg 768w, https://2021tomoziblog.com/wp-content/uploads/2021/12/DSC_0942-1536x864.jpg 1536w, https://2021tomoziblog.com/wp-content/uploads/2021/12/DSC_0942-2048x1152.jpg 2048w, https://2021tomoziblog.com/wp-content/uploads/2021/12/DSC_0942-240x135.jpg 240w, https://2021tomoziblog.com/wp-content/uploads/2021/12/DSC_0942-320x180.jpg 320w, https://2021tomoziblog.com/wp-content/uploads/2021/12/DSC_0942-640x360.jpg 640w, https://2021tomoziblog.com/wp-content/uploads/2021/12/DSC_0942-732x412.jpg 732w" sizes="auto, (max-width: 1024px) 100vw, 1024px" /></figure>



<p>楕円でフロントシングルは私の乗り方でロングライドは</p>



<ul class="wp-block-list"><li>軽い</li><li>チェーン落ちしない</li><li>カッコいい</li><li>ギヤを重くしたのに疲労感が53tの時と同じ</li><li>トラブル少ない</li></ul>



<p>でした。速さでなくロングライド的用途のかたおすすめです。</p>



<p>※素人がカスタムしてます。先輩ブロガーの方がたを見てカスタムしてます。カスタムする時は細部に気をつけてください。チェーンリングボルトが緩くて外れ、事故につながることがありうる。事故責任で取り組んでください。</p>



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