Features of the Shimano Deore XT BL-M8100/BR-M8120 Disc Brake and Lever Intuitive and versatile braking keeps your focus on the trail Optimized lever axle position with additional contact point and refined ergonomics Greater flexibility and action-optimized cockpit layout I-SPEC EV High rigidity Quicker brake engagement with shorter free stroke Rider tuned adjustment Toolless reach adjust Free stroke adjust