Bottom Bracket

-Average weight:77 g

商品說明 BOTTOM BRACKET WITH SMALL BALL BEARINGS FOR LIGHTWEIGHT ADVANCED SEAL CONSTRUCTION FOR SMOOTHER ROTATION Series: DURA-ACE BB Shell Width: 68mm/70mm Average Weight: 65g Made in Japan

  -Improved driving rigidity -Close ratio gear combination for minimum shifting gap and maintaining rhythm -Enhanced chain retention -Better sealing and better rotation -Various choices for bike and riding style -More durable chainwheel teeth -New...

-Average weight: 92g

SRP PRO PF4124 陶瓷壓入式啤呤中心 BB86-24MM / SRP PRO PF4124 CERAMIC BB-BB86-24MM

SRP PRO BSA24 陶瓷英式啤呤中心 / SRP PRO BSA24 CERAMIC BB-BSA

MEROCA PF30轉SHIMANO牙盤24mm 22陶瓷培林中軸壓入式中軸 (For PF30 68/73mm)  /  MEROCA PF3024 PRESS FIT BOTTOM BRACKETS