Shimano Dura-Ace BB-R9100 HollowTech II Bottom Bracket Italian Thread - 70mm

- The bottom bracket bearings for the HollowTech II FC-R9100 crankset, which is the ultimate crankset for stiffness whilst keeping weight low for performance riding and racing
- Minimal bearing interface gives superbly smooth rotation
- Distinctive style that exudes quality and perfection
- Required for installation of FC-R9100 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
- Axle Standard: 24mm
- Bottom Bracket Type: Italian Standard