Shimano BR-MT401/BL-MT420 Alivio Hydraulic Disc Brake Kit Front BlackThe Shimano BR-MT401/BL-MT420 Alivio Hydraulic Disc Brake Kit is designed for entry level riders and are Pre-bled out of the box. These post mount brakes work best with D03S Resin/D02S Metal pads. The hose lengths are 1000mm Front/1700mm Rear. Rotors sold separately. Available in Front and Rear.192790446738