Shimano SM-BB71 XT Press Fit Bottom Bracket - Mountain - With Inner Cover - 92mm or 89.5mm

Complete XT level press-fit bottom bracket assembly for Shimano HollowTech II MTB cranks. The cups are made from fibre reinforced polymer material which reduces the risk of frame noise and damage. Also as they're sealed they keep out dirt and water. Set includes left and right hand cups, 2.5 mm spacer, inner cover, and inner O-rings. Compatible with 89.5 mm (with 2.5 mm spacer) and 92 mm shells.41mm cup diameter.