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Shimano Dura-Ace BB-R9100 68/70 mm English

SHIMANO DURA-ACE - Bottom Bracket - Threaded - HOLLOWTECH II - 68/70 mm shell width

With an advanced seal construction for smoother rotation and small ball bearings to minimize weight, the SHIMANO DURA-ACE bottom bracket is offered in both pressfit and threaded options.

Features
  • Bottom bracket designed with small bearings for weight reduction
  • Advanced seal construction for smoother rotation
  • Product code: IBBR9100B
  • Item Number: BB-R9100