Performance Machine Integrated Four-Piston Rear Caliper For Harley M8 Softail Performance Machine calipers are designed to provide optimal braking power with no flex. The new Integrated Four-Piston Rear Caliper has been specifically engineered to mate perfectly with stock M8 Softail rear brake master cylinders. This new M8 caliper displays the famous PM logo machined on the caliper face and has the brake bracket seamlessly designed into the outer caliper half for an ultra-clean look. Available in Contrast Cut and Chrome finishes, these Performance Machine calipers are the most powerful and stylish calipers available for the M8 generation of Softails. Features: CNC machined from billet aluminum Custom integrated 1-piece design ABS and non-ABS compatible Chrome mounting hardware included Made in USA