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    <title>功率计 on 夜云泊</title>
    <link>https://lifeislife.cn/tags/%E5%8A%9F%E7%8E%87%E8%AE%A1/</link>
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      <title>速联SRAM RIVAL升级功率计</title>
      <link>https://lifeislife.cn/posts/%E9%80%9F%E8%81%94sram-rival%E5%8D%87%E7%BA%A7%E5%8A%9F%E7%8E%87%E8%AE%A1/</link>
      <pubDate>Sat, 02 Nov 2024 10:10:20 +0000</pubDate>
      <guid>https://lifeislife.cn/posts/%E9%80%9F%E8%81%94sram-rival%E5%8D%87%E7%BA%A7%E5%8A%9F%E7%8E%87%E8%AE%A1/</guid>
      <description>&lt;h1 id=&#34;为什么要升级&#34;&gt;为什么要升级&lt;/h1&gt;
&lt;p&gt;人傻钱多（bushi）。平时骑台子能实时看到自己输出功率，判断自己的状态，也能更好的控制自己的训练强度，不至于过度训练。外出路骑没有功率计总觉得不得劲，特别是在蹭风或者团骑时，不知道自己的状态如何，因为路骑人比较兴奋，也许功率已经超过自己的FTP但是可能并不觉得累，但是体能是有限的，不累只是精神上的感觉，也许骑不了多久精神头过了就被拉爆了。所以十分想要一个功率计能够实时看到自己的输出功率，能让路骑尽量维持在自己想要的强度。&lt;/p&gt;
&lt;h1 id=&#34;前期准备&#34;&gt;前期准备&lt;/h1&gt;
&lt;p&gt;先了解和功率计相关的几个零件：&lt;/p&gt;
&lt;ul&gt;
&lt;li&gt;盘片
&lt;ul&gt;
&lt;li&gt;SRAM Rival 107BCD 盘片
&lt;ul&gt;
&lt;li&gt;

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&lt;/li&gt;
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&lt;/li&gt;
&lt;li&gt;盘爪
&lt;ul&gt;
&lt;li&gt;SRAM Red AXS/Force
&lt;ul&gt;
&lt;li&gt;

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&lt;/li&gt;
&lt;li&gt;盘钉：固定盘片和盘爪
&lt;ul&gt;
&lt;li&gt;SRAM RIVAL 107/94 BCD M8X4.75X8.75 盘钉
&lt;ul&gt;
&lt;li&gt;

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&lt;li&gt;曲柄
&lt;ul&gt;
&lt;li&gt;SRAM RIVAL AXS QUARQ DUB&lt;/li&gt;
&lt;li&gt;

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&lt;/li&gt;
&lt;li&gt;曲柄螺丝
&lt;ul&gt;
&lt;li&gt;SRAM DUB AXS RED或FROCE 曲柄螺丝&lt;/li&gt;
&lt;li&gt;

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&lt;li&gt;中轴
&lt;ul&gt;
&lt;li&gt;和曲柄连接在一起&lt;/li&gt;
&lt;li&gt;

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&lt;p&gt;功率计的种类有很多，有脚踏功率计，盘爪功率计、曲柄功率计和贴片功率计等等，每种功率计都有自己的优缺点，因为我也不是专家所以就不详细介绍了，想要了解的可以参考视频&lt;a href=&#34;https://www.bilibili.com/video/BV1hj411s7mm/?spm_id_from=333.337.search-card.all.click&amp;amp;vd_source=7ff88341de4b5111bdf3db48b4e9ca44&#34;&gt;公路车功率计介绍和选择安装建议_哔哩哔哩_bilibili&lt;/a&gt;。&lt;/p&gt;
&lt;p&gt;我在看了一些介绍视频以及根据自己目前使用套件的情况，最终选择了使用人群最广的盘爪式功率计，盘爪功率计就是将上面提到的盘爪这个邻接用功率计替换，功率计本身就是盘爪。下面是我升级选购的一些思路，供和我一样的小白参考。&lt;/p&gt;
&lt;p&gt;当我决定使用盘爪式功率计时，就需要选择具体哪一款，哪一个品牌的功率计，可以直接淘宝搜索“盘爪功率计”，会有很多选择，如：&lt;/p&gt;
&lt;ul&gt;
&lt;li&gt;迈金 P505&lt;/li&gt;
&lt;li&gt;SRAM QUARQ&lt;/li&gt;
&lt;li&gt;Sigeyi 思各异&lt;/li&gt;
&lt;li&gt;XCADEY&lt;/li&gt;
&lt;/ul&gt;
&lt;p&gt;接下来就是根据自己的钱包大小来选择了，当然还有一个最重要的参数，就是BCD，这个参数是盘爪功率计的螺丝孔的间距，不同的品牌不同的型号的盘爪功率计BCD是不一样的，这个参数决定了功率计能否安装到牙盘上，我使用的是SRAM Rival eTap AXS套件，这个套件的BCD是107，所以我需要选择BCD为107的盘爪功率计。这时查看各个功率计详情可以看到迈金不支持107BCD，所以可以直接排除这款功率计了。在剩下的几款功率计中，SRAM QUARQ是SRAM自家的产品，我觉得原配最好，所以选择了SRAM QUARQ。&lt;/p&gt;
&lt;p&gt;关于盘片和盘爪规格的介绍可以参考视频&lt;a href=&#34;https://www.bilibili.com/video/BV1dM4m1y7c3/?spm_id_from=333.999.0.0&amp;amp;vd_source=7ff88341de4b5111bdf3db48b4e9ca44&#34;&gt;【自行车维修手册】第17期 公路车盘片选择与安装_哔哩哔哩_bilibili&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;在确定了功率计后，就需要考虑如何安装了，RIVAL套件中，曲柄和盘爪是一体的，这意味着如果要在不更换盘片的情况下加装功率计，就需要更换曲柄。更换曲柄就需要了解曲柄的规格，有不同类型的中轴比如GXP和DU，有不同的曲柄长度，还有不同的安装规格，比如3钉，5钉，8钉等等。因为我们已经选好了盘爪功率计，而盘爪功率计是和曲柄安装在一起的，所以盘爪功率计的规格已经确定了曲柄的安装规格，比如QUARQ的盘爪功率计是8钉，所以我们需要选择8钉的曲柄。接下来就是选择曲柄的长度，曲柄的长度根据自己的身体数据来选择，没有Fitting的话就看原来曲柄的长度，换一个一样长度的即可，曲柄的长度标注在曲柄上，比如我的RIVAL套件是170mm。&lt;/p&gt;
&lt;p&gt;

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&lt;p&gt;根据这些信息我选择了SRAM FORCE DUB 8 钉曲柄。&lt;/p&gt;
&lt;p&gt;

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            &lt;img class=&#34;responsive-image&#34; src=&#34;https://picbed-1311007548.cos.ap-shanghai.myqcloud.com/markdown_picbed/img//2024/11/05/1992762c24b909be05270aad2493df57.png&#34; alt=&#34;&#34;  style=&#34;margin: 0 auto;&#34;/&gt;
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&lt;/html&gt;&lt;/p&gt;
&lt;p&gt;关于曲柄规格的介绍可以参考视频&lt;a href=&#34;https://www.bilibili.com/video/BV1iW421R7se/?spm_id_from=333.999.0.0&amp;amp;vd_source=7ff88341de4b5111bdf3db48b4e9ca44&#34;&gt;【自行车维修手册】第15期 自行车曲柄牙盘规格区分介绍_哔哩哔哩_bilibili&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;至此主要的零件已经选购完毕，接下来就是等待零件到货，然后开始安装。但是安装少不了工具，需要准备的工具有：&lt;/p&gt;
&lt;ul&gt;
&lt;li&gt;8 mm 内六角扳手，拆卸安装曲柄&lt;/li&gt;
&lt;li&gt;空心钢管，用于拆卸安装曲柄，当做加力杆，曲柄的螺丝扭力高达50N.m，普通扳手力臂太小，很难拧下来&lt;/li&gt;
&lt;li&gt;6 mm 内六角扳手，拆卸安装脚踏&lt;/li&gt;
&lt;li&gt;2 mm 内六角扳手，调整曲柄锁紧环&lt;/li&gt;
&lt;li&gt;扭力扳手，安装曲柄螺丝&lt;/li&gt;
&lt;li&gt;界面脂&lt;/li&gt;
&lt;/ul&gt;
&lt;h1 id=&#34;拆卸&#34;&gt;拆卸&lt;/h1&gt;
&lt;p&gt;曲柄拆卸方式可以参考视频&lt;a href=&#34;https://www.bilibili.com/video/BV13w4m1271e/?spm_id_from=333.337.search-card.all.click&amp;amp;vd_source=7ff88341de4b5111bdf3db48b4e9ca44&#34;&gt;技师手册十四（连载）速联RIVAL牙盘曲柄拆装_哔哩哔哩_bilibili&lt;/a&gt;。&lt;/p&gt;
&lt;p&gt;

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    &lt;title&gt;Responsive Image&lt;/title&gt;
    &lt;style&gt;
        .post-img-view {
            text-align: center;
        }
        .responsive-image {
            display: block;
            margin: 0 auto;
        }
    &lt;/style&gt;
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&lt;body&gt;
    
    &lt;div class=&#34;post-img-view&#34;&gt;
        &lt;a data-fancybox=&#34;gallery&#34; href=&#34;https://picbed-1311007548.cos.ap-shanghai.myqcloud.com/markdown_picbed/img//2024/11/05/98c7b773a4f766c79beff19d2fd9a6fe.png&#34;&gt;
            &lt;img class=&#34;responsive-image&#34; src=&#34;https://picbed-1311007548.cos.ap-shanghai.myqcloud.com/markdown_picbed/img//2024/11/05/98c7b773a4f766c79beff19d2fd9a6fe.png&#34; alt=&#34;&#34;  style=&#34;margin: 0 auto;&#34;/&gt;
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&lt;/html&gt;&lt;/p&gt;
&lt;p&gt;这里有个小技巧，就是在拆卸曲柄时，可以用一个空心钢管套在内六角扳手上，这样可以增加力臂，减小力臂，这样就可以更容易的拧下曲柄螺丝。还有如果你和我一样总记不住拆卸曲柄和脚踏的方向，那么可以这么记。&lt;strong&gt;拆卸的旋转方向都是踩踏前进的相反方向&lt;/strong&gt;。&lt;/p&gt;
&lt;h1 id=&#34;安装&#34;&gt;安装&lt;/h1&gt;
&lt;p&gt;安装就是把螺丝拧上，但是有一些细节需要注意：&lt;/p&gt;
&lt;ul&gt;
&lt;li&gt;曲柄和盘爪连接的螺丝的扭力值为 4 N.m&lt;/li&gt;
&lt;li&gt;大牙盘正面有一个金属圆柱，这个圆柱体需要在曲柄正下方
&lt;ul&gt;
&lt;li&gt;

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    &lt;title&gt;Responsive Image&lt;/title&gt;
    &lt;style&gt;
        .post-img-view {
            text-align: center;
        }
        .responsive-image {
            display: block;
            margin: 0 auto;
        }
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&lt;body&gt;
    
    &lt;div class=&#34;post-img-view&#34;&gt;
        &lt;a data-fancybox=&#34;gallery&#34; href=&#34;https://picbed-1311007548.cos.ap-shanghai.myqcloud.com/markdown_picbed/img//2024/11/06/8d795b69827bc54175e92387ff25e31e.png&#34;&gt;
            &lt;img class=&#34;responsive-image&#34; src=&#34;https://picbed-1311007548.cos.ap-shanghai.myqcloud.com/markdown_picbed/img//2024/11/06/8d795b69827bc54175e92387ff25e31e.png&#34; alt=&#34;&#34;  style=&#34;margin: 0 auto;&#34;/&gt;
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&lt;/html&gt;&lt;/li&gt;
&lt;li&gt;

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&lt;html lang=&#34;en&#34;&gt;
&lt;head&gt;
    &lt;meta charset=&#34;UTF-8&#34;&gt;
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    &lt;title&gt;Responsive Image&lt;/title&gt;
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        }
        .responsive-image {
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        }
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&lt;body&gt;
    
    &lt;div class=&#34;post-img-view&#34;&gt;
        &lt;a data-fancybox=&#34;gallery&#34; href=&#34;https://picbed-1311007548.cos.ap-shanghai.myqcloud.com/markdown_picbed/img//2024/11/06/86d9decd4c459c518c3bd83e284fcd6b.png&#34;&gt;
            &lt;img class=&#34;responsive-image&#34; src=&#34;https://picbed-1311007548.cos.ap-shanghai.myqcloud.com/markdown_picbed/img//2024/11/06/86d9decd4c459c518c3bd83e284fcd6b.png&#34; alt=&#34;&#34;  style=&#34;margin: 0 auto;&#34;/&gt;
        &lt;/a&gt;
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    &lt;/script&gt;
&lt;/body&gt;
&lt;/html&gt;&lt;/li&gt;
&lt;/ul&gt;
&lt;/li&gt;
&lt;li&gt;小牙盘上有一个凸起的尖尖，这个尖尖需要在曲柄正下方
&lt;ul&gt;
&lt;li&gt;

&lt;!DOCTYPE html&gt;
&lt;html lang=&#34;en&#34;&gt;
&lt;head&gt;
    &lt;meta charset=&#34;UTF-8&#34;&gt;
    &lt;meta name=&#34;viewport&#34; content=&#34;width=device-width, initial-scale=1.0&#34;&gt;
    &lt;title&gt;Responsive Image&lt;/title&gt;
    &lt;style&gt;
        .post-img-view {
            text-align: center;
        }
        .responsive-image {
            display: block;
            margin: 0 auto;
        }
    &lt;/style&gt;
&lt;/head&gt;
&lt;body&gt;
    
    &lt;div class=&#34;post-img-view&#34;&gt;
        &lt;a data-fancybox=&#34;gallery&#34; href=&#34;https://picbed-1311007548.cos.ap-shanghai.myqcloud.com/markdown_picbed/img//2024/11/06/047489de549a5d449be3d655314c06c2.png&#34;&gt;
            &lt;img class=&#34;responsive-image&#34; src=&#34;https://picbed-1311007548.cos.ap-shanghai.myqcloud.com/markdown_picbed/img//2024/11/06/047489de549a5d449be3d655314c06c2.png&#34; alt=&#34;&#34;  style=&#34;margin: 0 auto;&#34;/&gt;
        &lt;/a&gt;
    &lt;/div&gt;
    

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    &lt;/script&gt;
&lt;/body&gt;
&lt;/html&gt;&lt;/li&gt;
&lt;/ul&gt;
&lt;/li&gt;
&lt;li&gt;小牙盘标注齿数和型号的那面正对自己才是正确的方向&lt;/li&gt;
&lt;li&gt;牙盘的盘钉扭力值为 10 N.m&lt;/li&gt;
&lt;li&gt;每个螺丝都抹上界面脂，因为牙盘上的螺丝都会受到很大的力，所以需要抹上界面脂，这样可以减小螺丝的摩擦力，减小螺丝的磨损，也可以防止异响&lt;/li&gt;
&lt;li&gt;中轴的大螺丝抹上黄油，扭力值至少为50 N.m，扭紧时最好用上空心钢管&lt;/li&gt;
&lt;/ul&gt;
&lt;h1 id=&#34;参考资料&#34;&gt;参考资料&lt;/h1&gt;
&lt;ul&gt;
&lt;li&gt;&lt;a href=&#34;https://www.bilibili.com/video/BV1iW421R7se/?spm_id_from=333.999.0.0&amp;amp;vd_source=7ff88341de4b5111bdf3db48b4e9ca44&#34;&gt;【自行车维修手册】第15期 自行车曲柄牙盘规格区分介绍_哔哩哔哩_bilibili&lt;/a&gt;&lt;/li&gt;
&lt;li&gt;&lt;a href=&#34;https://www.bilibili.com/video/BV1dM4m1y7c3/?spm_id_from=333.999.0.0&amp;amp;vd_source=7ff88341de4b5111bdf3db48b4e9ca44&#34;&gt;【自行车维修手册】第17期 公路车盘片选择与安装_哔哩哔哩_bilibili&lt;/a&gt;&lt;/li&gt;
&lt;li&gt;&lt;a href=&#34;https://www.bilibili.com/video/BV1hj411s7mm/?spm_id_from=333.337.search-card.all.click&amp;amp;vd_source=7ff88341de4b5111bdf3db48b4e9ca44&#34;&gt;公路车功率计介绍和选择安装建议_哔哩哔哩_bilibili&lt;/a&gt;&lt;/li&gt;
&lt;/ul&gt;
</description>
      <content:encoded><![CDATA[<h1 id="为什么要升级">为什么要升级</h1>
<p>人傻钱多（bushi）。平时骑台子能实时看到自己输出功率，判断自己的状态，也能更好的控制自己的训练强度，不至于过度训练。外出路骑没有功率计总觉得不得劲，特别是在蹭风或者团骑时，不知道自己的状态如何，因为路骑人比较兴奋，也许功率已经超过自己的FTP但是可能并不觉得累，但是体能是有限的，不累只是精神上的感觉，也许骑不了多久精神头过了就被拉爆了。所以十分想要一个功率计能够实时看到自己的输出功率，能让路骑尽量维持在自己想要的强度。</p>
<h1 id="前期准备">前期准备</h1>
<p>先了解和功率计相关的几个零件：</p>
<ul>
<li>盘片
<ul>
<li>SRAM Rival 107BCD 盘片
<ul>
<li>

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    <title>Responsive Image</title>
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        .responsive-image {
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        }
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</head>
<body>
    
    <div class="post-img-view">
        <a data-fancybox="gallery" href="https://picbed-1311007548.cos.ap-shanghai.myqcloud.com/markdown_picbed/img//2024/11/02/d8dbeaea4c456b12ab411f003817fa8e.png">
            <img class="responsive-image" src="https://picbed-1311007548.cos.ap-shanghai.myqcloud.com/markdown_picbed/img//2024/11/02/d8dbeaea4c456b12ab411f003817fa8e.png" alt=""  style="margin: 0 auto;"/>
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    </script>
</body>
</html></li>
</ul>
</li>
</ul>
</li>
<li>盘爪
<ul>
<li>SRAM Red AXS/Force
<ul>
<li>

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Responsive Image</title>
    <style>
        .post-img-view {
            text-align: center;
        }
        .responsive-image {
            display: block;
            margin: 0 auto;
        }
    </style>
</head>
<body>
    
    <div class="post-img-view">
        <a data-fancybox="gallery" href="https://picbed-1311007548.cos.ap-shanghai.myqcloud.com/markdown_picbed/img//2024/11/02/731cdbc91ef46d8b83f288335e93d881.png">
            <img class="responsive-image" src="https://picbed-1311007548.cos.ap-shanghai.myqcloud.com/markdown_picbed/img//2024/11/02/731cdbc91ef46d8b83f288335e93d881.png" alt=""  style="margin: 0 auto;"/>
        </a>
    </div>
    

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</body>
</html></li>
</ul>
</li>
</ul>
</li>
<li>盘钉：固定盘片和盘爪
<ul>
<li>SRAM RIVAL 107/94 BCD M8X4.75X8.75 盘钉
<ul>
<li>

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Responsive Image</title>
    <style>
        .post-img-view {
            text-align: center;
        }
        .responsive-image {
            display: block;
            margin: 0 auto;
        }
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</head>
<body>
    
    <div class="post-img-view">
        <a data-fancybox="gallery" href="https://picbed-1311007548.cos.ap-shanghai.myqcloud.com/markdown_picbed/img//2024/11/02/36b8ba6a6ef7cf56fb28e6a5bfb7c497.png">
            <img class="responsive-image" src="https://picbed-1311007548.cos.ap-shanghai.myqcloud.com/markdown_picbed/img//2024/11/02/36b8ba6a6ef7cf56fb28e6a5bfb7c497.png" alt=""  style="margin: 0 auto;"/>
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    </script>
</body>
</html></li>
</ul>
</li>
</ul>
</li>
<li>曲柄
<ul>
<li>SRAM RIVAL AXS QUARQ DUB</li>
<li>

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<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
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<body>
    
    <div class="post-img-view">
        <a data-fancybox="gallery" href="https://picbed-1311007548.cos.ap-shanghai.myqcloud.com/markdown_picbed/img//2024/11/02/27d80f442010abcb997944f0cbda099a.png">
            <img class="responsive-image" src="https://picbed-1311007548.cos.ap-shanghai.myqcloud.com/markdown_picbed/img//2024/11/02/27d80f442010abcb997944f0cbda099a.png" alt=""  style="margin: 0 auto;"/>
        </a>
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</body>
</html></li>
</ul>
</li>
<li>曲柄螺丝
<ul>
<li>SRAM DUB AXS RED或FROCE 曲柄螺丝</li>
<li>

<!DOCTYPE html>
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<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Responsive Image</title>
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    <div class="post-img-view">
        <a data-fancybox="gallery" href="https://picbed-1311007548.cos.ap-shanghai.myqcloud.com/markdown_picbed/img//2024/11/02/ef2e8c647b649f55846b0df00219e73e.png">
            <img class="responsive-image" src="https://picbed-1311007548.cos.ap-shanghai.myqcloud.com/markdown_picbed/img//2024/11/02/ef2e8c647b649f55846b0df00219e73e.png" alt=""  style="margin: 0 auto;"/>
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</body>
</html></li>
</ul>
</li>
<li>中轴
<ul>
<li>和曲柄连接在一起</li>
<li>

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    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
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    <div class="post-img-view">
        <a data-fancybox="gallery" href="https://picbed-1311007548.cos.ap-shanghai.myqcloud.com/markdown_picbed/img//2024/11/02/e4009029b373cefeb313f49b3b6953b3.png">
            <img class="responsive-image" src="https://picbed-1311007548.cos.ap-shanghai.myqcloud.com/markdown_picbed/img//2024/11/02/e4009029b373cefeb313f49b3b6953b3.png" alt=""  style="margin: 0 auto;"/>
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</ul>
</li>
</ul>
<p>功率计的种类有很多，有脚踏功率计，盘爪功率计、曲柄功率计和贴片功率计等等，每种功率计都有自己的优缺点，因为我也不是专家所以就不详细介绍了，想要了解的可以参考视频<a href="https://www.bilibili.com/video/BV1hj411s7mm/?spm_id_from=333.337.search-card.all.click&amp;vd_source=7ff88341de4b5111bdf3db48b4e9ca44">公路车功率计介绍和选择安装建议_哔哩哔哩_bilibili</a>。</p>
<p>我在看了一些介绍视频以及根据自己目前使用套件的情况，最终选择了使用人群最广的盘爪式功率计，盘爪功率计就是将上面提到的盘爪这个邻接用功率计替换，功率计本身就是盘爪。下面是我升级选购的一些思路，供和我一样的小白参考。</p>
<p>当我决定使用盘爪式功率计时，就需要选择具体哪一款，哪一个品牌的功率计，可以直接淘宝搜索“盘爪功率计”，会有很多选择，如：</p>
<ul>
<li>迈金 P505</li>
<li>SRAM QUARQ</li>
<li>Sigeyi 思各异</li>
<li>XCADEY</li>
</ul>
<p>接下来就是根据自己的钱包大小来选择了，当然还有一个最重要的参数，就是BCD，这个参数是盘爪功率计的螺丝孔的间距，不同的品牌不同的型号的盘爪功率计BCD是不一样的，这个参数决定了功率计能否安装到牙盘上，我使用的是SRAM Rival eTap AXS套件，这个套件的BCD是107，所以我需要选择BCD为107的盘爪功率计。这时查看各个功率计详情可以看到迈金不支持107BCD，所以可以直接排除这款功率计了。在剩下的几款功率计中，SRAM QUARQ是SRAM自家的产品，我觉得原配最好，所以选择了SRAM QUARQ。</p>
<p>关于盘片和盘爪规格的介绍可以参考视频<a href="https://www.bilibili.com/video/BV1dM4m1y7c3/?spm_id_from=333.999.0.0&amp;vd_source=7ff88341de4b5111bdf3db48b4e9ca44">【自行车维修手册】第17期 公路车盘片选择与安装_哔哩哔哩_bilibili</a></p>
<p>在确定了功率计后，就需要考虑如何安装了，RIVAL套件中，曲柄和盘爪是一体的，这意味着如果要在不更换盘片的情况下加装功率计，就需要更换曲柄。更换曲柄就需要了解曲柄的规格，有不同类型的中轴比如GXP和DU，有不同的曲柄长度，还有不同的安装规格，比如3钉，5钉，8钉等等。因为我们已经选好了盘爪功率计，而盘爪功率计是和曲柄安装在一起的，所以盘爪功率计的规格已经确定了曲柄的安装规格，比如QUARQ的盘爪功率计是8钉，所以我们需要选择8钉的曲柄。接下来就是选择曲柄的长度，曲柄的长度根据自己的身体数据来选择，没有Fitting的话就看原来曲柄的长度，换一个一样长度的即可，曲柄的长度标注在曲柄上，比如我的RIVAL套件是170mm。</p>
<p>

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<p>

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<p>根据这些信息我选择了SRAM FORCE DUB 8 钉曲柄。</p>
<p>

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<p>关于曲柄规格的介绍可以参考视频<a href="https://www.bilibili.com/video/BV1iW421R7se/?spm_id_from=333.999.0.0&amp;vd_source=7ff88341de4b5111bdf3db48b4e9ca44">【自行车维修手册】第15期 自行车曲柄牙盘规格区分介绍_哔哩哔哩_bilibili</a></p>
<p>至此主要的零件已经选购完毕，接下来就是等待零件到货，然后开始安装。但是安装少不了工具，需要准备的工具有：</p>
<ul>
<li>8 mm 内六角扳手，拆卸安装曲柄</li>
<li>空心钢管，用于拆卸安装曲柄，当做加力杆，曲柄的螺丝扭力高达50N.m，普通扳手力臂太小，很难拧下来</li>
<li>6 mm 内六角扳手，拆卸安装脚踏</li>
<li>2 mm 内六角扳手，调整曲柄锁紧环</li>
<li>扭力扳手，安装曲柄螺丝</li>
<li>界面脂</li>
</ul>
<h1 id="拆卸">拆卸</h1>
<p>曲柄拆卸方式可以参考视频<a href="https://www.bilibili.com/video/BV13w4m1271e/?spm_id_from=333.337.search-card.all.click&amp;vd_source=7ff88341de4b5111bdf3db48b4e9ca44">技师手册十四（连载）速联RIVAL牙盘曲柄拆装_哔哩哔哩_bilibili</a>。</p>
<p>

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            <img class="responsive-image" src="https://picbed-1311007548.cos.ap-shanghai.myqcloud.com/markdown_picbed/img//2024/11/05/98c7b773a4f766c79beff19d2fd9a6fe.png" alt=""  style="margin: 0 auto;"/>
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<p>这里有个小技巧，就是在拆卸曲柄时，可以用一个空心钢管套在内六角扳手上，这样可以增加力臂，减小力臂，这样就可以更容易的拧下曲柄螺丝。还有如果你和我一样总记不住拆卸曲柄和脚踏的方向，那么可以这么记。<strong>拆卸的旋转方向都是踩踏前进的相反方向</strong>。</p>
<h1 id="安装">安装</h1>
<p>安装就是把螺丝拧上，但是有一些细节需要注意：</p>
<ul>
<li>曲柄和盘爪连接的螺丝的扭力值为 4 N.m</li>
<li>大牙盘正面有一个金属圆柱，这个圆柱体需要在曲柄正下方
<ul>
<li>

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<li>

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</ul>
</li>
<li>小牙盘上有一个凸起的尖尖，这个尖尖需要在曲柄正下方
<ul>
<li>

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</li>
<li>小牙盘标注齿数和型号的那面正对自己才是正确的方向</li>
<li>牙盘的盘钉扭力值为 10 N.m</li>
<li>每个螺丝都抹上界面脂，因为牙盘上的螺丝都会受到很大的力，所以需要抹上界面脂，这样可以减小螺丝的摩擦力，减小螺丝的磨损，也可以防止异响</li>
<li>中轴的大螺丝抹上黄油，扭力值至少为50 N.m，扭紧时最好用上空心钢管</li>
</ul>
<h1 id="参考资料">参考资料</h1>
<ul>
<li><a href="https://www.bilibili.com/video/BV1iW421R7se/?spm_id_from=333.999.0.0&amp;vd_source=7ff88341de4b5111bdf3db48b4e9ca44">【自行车维修手册】第15期 自行车曲柄牙盘规格区分介绍_哔哩哔哩_bilibili</a></li>
<li><a href="https://www.bilibili.com/video/BV1dM4m1y7c3/?spm_id_from=333.999.0.0&amp;vd_source=7ff88341de4b5111bdf3db48b4e9ca44">【自行车维修手册】第17期 公路车盘片选择与安装_哔哩哔哩_bilibili</a></li>
<li><a href="https://www.bilibili.com/video/BV1hj411s7mm/?spm_id_from=333.337.search-card.all.click&amp;vd_source=7ff88341de4b5111bdf3db48b4e9ca44">公路车功率计介绍和选择安装建议_哔哩哔哩_bilibili</a></li>
</ul>
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