Shimano SM-BB71 Road PressFit Bottom Bracket

The Shimano SM-BB71 Road Press Fit Bottom Bracket with Inner Cover for 86.5 mm is a Complete Ultegra level press-fit bottom bracket assembly for Shimano HollowTech II road cranks. The cups are produced with fibre reinforced polymer material, this reduces the risk of frame noise and damage. The Shimano set includes left and right hand cups, inner cover, and inner O-rings. By having sealed cups they ensure the dirt and water keep at bay. The Shimano SM-BB71 Road Press Fit Bottom Bracket is completely maintenance free making it one less thing to worry about. The Shimano SM-BB71 Road Press Fit Bottom Bracket Features Complete Ultegra level press-fit bottom bracket assembly for Shimano HollowTech II road cranks Cups are made from fibre reinforced polymer material Set includes left and right hand cups, inner cover, and inner O-rings Sealed cups keep out dirt and water Maintenance free Compatible with 86.5 mm shells 41 mm cup diameter Easy press-fit installation "