Arlen Ness Front 4 Piston Caliper For Harley Features: 4-piston brake calipers CNC machined from billet aluminum Features caliper bodies that are engineered for form and function, 3D sculptured design helps facilitate cooling incurred while braking Extremely stiff under stress ensuring precise and consistent braking performance Cooling fins are machined into the inner caliper halves help disperse heat Each Caliper includes DP brake pads, bleeder screw, banjo bolt, sealing washers, mounting hardware and shim kit