Shimano Dura Ace BB-R9100 Bottom Bracket 68mm English Thread
- Complete Dura Ace R9100 threaded bottom bracket assembly for Shimano HollowTech II Road cranks
- BSA English (1.37″ x 24 tpi) threaded cups with outboard bearings
- Set includes left and right hand cups and inner cover
- New improved sealing ensures 50% less drag
- 33.7mm cup diameter
- Compatible with 68mm shells
condition
new













Reviews
There are no reviews yet.