Shimano BB-MT800 Bottom Bracket Set for FC-MX70/MX71 HollowTech II Chainset - Black - 68mm

The Shimano HollowTech II bottom bracket assembly set includes left and right hand cups, spacers, inner cover, and inner O-rings. Its Light weight seal structure helps to remove vital grams to keep the weight as low as possible, those sealed cups also work to keep out dirt and water preventing the need for excessive maintenance. Designed for use with FC-MX70/MX71 chainsets, 68mm shell with short sleeve.