Shimano BB91-42A Press Fit Bottom Bracket, XTR quality, compatible with all MTB hollowtech 2 chainsets.
- Complete XTR level press-fit bottom bracket assembly for Shimano HollowTech II MTB cranks
- Cups are made from fibre reinforced polymer material which reduces the risk of frame noise and damage
- Set includes left and right hand cups, 2.5 mm spacer
- Sealed cups keep out dirt and water
- Compatible with 89.5 mm (with 2.5 mm spacer) and 92 mm shells
- Easy press-fit installation
- Please note – not supplied with inner sleeve