Arlen Ness Front 6 Piston Differential Bore Caliper For Harley With 11.8 Rotors Designed and engineerd to be extremely stiff under stress ensuring precise and consistent braking performance. Features caliper bodies that are engineered for form and function, #d sculptured design helps facilitate cooling incurred while braking. Features: Left and right sides available Designed for 11.8 disc applications 6-piston brake calipers CNC machined from billet aluminum Differential bore Cooling fins machined into the inner caliper halves help disperse heat Compatible with ABS and non-ABS applications Each caliper includes DP brake pads, bleeder screw, banjo bolt, sealing washers, mounting hardware and shim kit