Shimano Deore BL-MT501 hyraulic disc brake offers reliable power and a rigid brake design for a multitude of riding styles, from XC to trail. Brakes are pre-bled. Lever and caliper packaged separately -The Deore BL-MT501 hydraulic disc brake lever contains a smooth and durable master cylinder design for sleek and stable braking -Lever features Servowave action technology which increases the lever output so that little lever movement is needed to bring the pads into contact with the rotor -I-SPEC II clamp band -2-finger lever size with tooled reach adjust -The BR-MT500 2-piston hydraulic disc brake caliper offers powerful and responsive braking -Smooth and predictable control