high bb makes your obliques very sore, because you need to use more core muscle to balance.

this is not true. the rb lever has a lot more power than a standard magura lever, so without the booster it is a little bit mushy. i did try the frame without. the brake works much better with the booster.

when i put a...  [看更多]

Thank you for the tips, in fact I am something different in learning procedure, I can do pedal hop but can't do hopping without pedal, it goes that way from the beginning, I almost forget this until you remind me now, I should try to...  [看更多]

我發現那20吋小車使用曲柄護盤而不裝笨重的防撞底盤, 偷學我的減重招.