m1gpx2004 wrote:之前我待的車店有一組...(恕刪)
michlin wrote:其實加常曲柄長度並不會比較省力...(恕刪)
michlin wrote:其實加常曲柄長度並不會比較省力,因為劃圓的圓周也變長了~~~
EK9 wrote:我說的是橢圓盤,不是...(恕刪)
givemelightbike wrote:Dpardo 動力彎...(恕刪)