檢視曲柄的原始碼

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中文名；曲柄

简介；自行车中，和牙盘相连的部分

牙盘购买指南；参看正文

作用；连接蹬踏和牙盘
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'''曲柄'''是自行车配件，松动的曲柄经常会发出喀嚓声。检查曲柄问题时，先将曲柄转至水平[[位置]]，同时用力将两侧曲柄向下压，再转动曲柄180度，重复同样的动作。如果曲柄会晃动，则应将曲柄固定螺栓拴紧。新[[自行车]]的曲柄要经常进行这种检查。<ref>[https://wenda.so.com/q/1535057897219929?src=180&q=%E6%9B%B2%E6%9F%84 什么是曲柄?],360问答 , 2017年12月10日</ref>