Shimano Dura-Ace BB-R9100 Hollowtech II Bottom Bracket
System engineering at its peak. Each of the components magnifies the qualities of the others for an unparalleled level of performance. Optimizing input to maximize output. That's how it achieves supremacy.
Bottom bracket with small ball bearings for lightweight
Advanced seal construction for smoother rotation
English Thread (BSA)
BB Shell Width: 68mm
Average Weight: 65g
You Might Also Like
Ratings & Reviews
365 DAY RETURNS
Its OK to change your mind!
OUR CUSTOMERS LOVE US
4.8 Satisfaction Rating from Shopper Approved.
WE ARE EXPERTS
selling only the best cycling gear since 1986