Complete XT level press-fit bottom bracket assembly for Shimano HollowTech II MTB cranks. It features:
- Cups made from fibre reinforced polymer material which reduces the risk of frame noise and damage
- Set includes left and right hand cups, 2.5mm spacer, inner cover, and inner O-rings
- Sealed cups keep out dirt and water
- Maintenance free
- 41mm cup diameter
- Easy press-fit installation
Compatible with 89.5mm (with 2.5mm spacer) and 92mm shells.