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Brand: Shimano
Model: BB-R9100
Series: DURA-ACE R9100 Series
Threaded BB shell width: 70mm
Color: Black (same as the photo)
Average Weight : 65g
Qty: 1 PC

BB-R9100

SHIMANO DURA-ACE - Bottom Bracket - Threaded - HOLLOWTECH II - 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.

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On Feb 19, 2026 at 06:46:08 PST, seller added the following information:

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