Shimano Dura-Ace 9100 HollowTech II Bearing Cups
Maintain optimal drivetrain performance with ultra-low drivetrain friction with the Shimano Dura-Ace 9100 HollowTech II Bearing Cups. Shimano has improved on its already advanced seal construction for smoother rotation and reduced friction.
Shimano Dura-Ace 9100 HollowTech II Bearing Cups: Available in both English (68mm) and Italian (70mm) models
Features
- Bottom bracket with small ball bearings for low weight
- Advanced seal construction for smoother rotation
- English 68mm/Italian 70mm bottom bracket shell widths
- Threaded cups
- Required for installation of FCR9100 chainset, with a choice of English or Italian thread BB cups
- Use TLFC34 or TLFC24 in conjunction with TLFC36 adaptor tool for installation and removal
- Please note: Bottom Bracket Adaptor Tool not included












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