image連結

原來可以拿來刮手繭，真是天才........XD

原出處 ----> 連結

I finally found the root of all my BB problems. The BB bolt is usually too slack and usually comes out more as you ride. So I normally just use more force to tighten it and that just messes up the BB over time.

So using this...  (看全文)

請問我的後花鼓會往前滑一點,
導致鏈條鬆一點點,

可能是後花鼓鎖不夠緊, 請問要鎖幾牛米ㄋㄟ ?

還好還有一台備用的