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