Shimano BB-R9100 Bottom Brackets

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.

 

Bottom bracket with small ball bearings for lightweight

Advanced seal construction for smoother rotation

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