Shimano SM-BB71 MTB press fit bottom bracket

Complete XT level press-fit bottom bracket assembly designed for Shimano HollowTech II MTB cranks. Features fibre reinforced polymer cups that reduce frame noise and prevent damage whilst maintaining a sealed design to keep dirt and water out. The set includes left and right hand cups, 2.5 mm spacer, inner cover, and O-rings for a complete installation. Maintenance-free operation with easy press-fit installation into 89.5 mm (with spacer) or 92 mm bottom bracket shells. 41 mm cup diameter ensures compatibility with your existing drivetrain setup. Black finish. MTB discipline.