Shimano XTR BL-M9120/BR-M9120 Disc Brake and Lever - Post Mount, Finned Metal Pads, Gray - Shimano's XTR M9120 Enduro-style hydraulic disc brake system increases brake rigidity for greater bike control, and optimizes braking performance.4-piston Enduro brake system offers high performance brake control with reduced input force at the finger tipsBanjo type connection and inboard hose routingBrakes are pre-bledLever can be adjusted to suit any hand or riding style with tool-free reach adjustLever provides greater flexibility and an action-optimized cockpit layoutQuicker rebound between actions maintains rider concentration