Shimano Dura-Ace BB-R9100 Italian Bottom Bracket

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- All Shimano products sold by us are guaranteed genuine, brand new and fresh stock.
- Installation available in-store (fees apply).

The Shimano Dura-Ace BB-R9100 Italian is a lightweight Hollowtech II bottom bracket for road use, designed for 70mm Italian-threaded frames and Shimano 24mm road cranksets. Its small ball bearings and advanced sealing help provide smooth rotation while keeping weight low.

Model: BB-R9100
Series: Dura-Ace
Thread Type: Italian / ITA
Shell Width: 70mm
Axle Diameter: 24mm
Weight: Approx. 65g
Compatibility: Shimano Hollowtech II road cranksets
Application: Road