SHIMANO BB-R9100 DURA-ACE BSC crankset

Designed for 68 mm frames, the bottom bracket SHIMANO Dura-Ace 9100 BSC bottom bracket features even smoother, more sealed bearings than the previous generation.

The size of the bearings has also been revised to make them lighter.

A - Diameter (mm)	B - Width (mm)	Assembly	Standard
34,8	68	screw-on	BSC / BSA
34,8	73	screw-in	BSC / BSA
34,8	83	screw-in	BSC / BSA
34,8	100	screw-in	BSC / BSA
27	95,5	insert	BB 96 (Trek)
41	92	insert	PF 92
42	68	insert	BB 30
42	73	insert	BB 30
46	68	insert	PF 30
46	73	insert	PF 30

Ref: 7970330181798