bicycle tire comfort-Shimano Threaded Bottom Bracket BB-R9100 for 68/70 mm Shell Width

Thread Type English Italian
Qty:
  • The Shimano Dura Ace BB-R9100 threaded bottom bracket is built with an advanced seal construction for smoother rotation and small ball bearings to minimize weight
  • BB Shell Width: 68-70mm
  • Available in English or Italian thread
  • Weight: 65g