Shimano XT RD-M772 Rear Derailleur B-Axle Assembly

Shimano XT RD-M772 Rear Derailleur B-Axle Assembly Description: The Shimano XT RD-M772 Rear Derailleur B-Axle Assembly is a factory replacement part, and it consists of the parts necessary to attach the rear derailleur's bracket axle to a derailleur hanger. This assembly also includes a B-tension screw to fine tune the position of the rear derailleur for sprocket clearance and optimal shifting performance. Features: Includes the b-axle, washer, and the b-tension screw Bracket axle and other hardware sold separately Designed specifically for the Shimano XT RD-M772 rear derailleur, but can fit the Shimano XTR RD-M972 rear derailleur