The Shimano SM-BB71 MTB press fit bottom bracket with inner cover for 92mm or 89.5mm is a complete Mountain Bike press-fit bottom bracket assembly for Shimano HollowTech II MTB cranks
This bottom bracket has cups which are made from fibre reinforced polymer material - reducing the risk of frame noise and damage
Set includes left and right hand cups, 2.5 mm spacer, inner cover, and inner O-rings
Sealed cups keep out both dirt and waterMaintenance free
Compatible with 89.5 mm (with 2.5 mm spacer) and 92 mm shells
41 mm cup diameter
Easy press-fit installation
Colour: Black