Shimano M810 Saint Hollow Teach II Bottom Bracket. This genuine Shimano Hollowtech II Bottom Bracket assembly, the length of the screw thread is increased to enable the fitment of chain devices & the set
Includes:: left & right hand cups, spacers, inner cover, & inner O-rings. The light weight seal structure helps to remove vital grams & sealed cups keep out dirt & water making this item maintenance free. Durable gold anodised finish. Easy installation. Compatible with both 68/73mm & 83mm shells.