Had this before. Could be some dirt around the brake.

所有跟帖： 

• 如果老是這種響聲，應該不是灰塵或太幹了，最多也隻是一天剛開時出現，反複出現則是刹車片問題 -偶爾評論一下- ♀ (6 bytes) () 09/13/2013 postreply 11:33:46