SHIMANO Dura Ace bottom bracket BB-R9100 - BSA

This bottom bracket is designed for use in BSA bottom bracket shells. It features high-quality, sealed deep groove ball bearings.

Caution: Due to its shallow thread engagement, it is not suitable for use with spacers! 


Technical specifications:

Intended use: Road
Bearing cup material: Aluminum
Bearing material: Steel Bottom bracket
type: BSA
Bottom bracket shell width: 68 mm
Bottom bracket shell diameter: 34.8 mm (with BSA thread)
Crank axle diameter: 24 mm
Crank compatibility: Shimano Road Hollowtech II cranks and others with a 24 mm axle
Tool interface: 16-tooth bottom bracket wrench
Color: Black