Performance Machine Four-Piston Differential-Bore Rear Calipers For Harley Softail Stock Harley brakes are rarely exceptional. Performance Machine has built high quality braking components for as long as anyone in the custom Harley scene can remember. A strong set of calipers can change the bike and the way you ride it. Performance Machine differential bore calipers use different piston sizes to engage the rotor at slightly different rates. The result is a progressive feel with stronger braking and longer, firmer lever travel. With clean styling that matches their performance, PM calipers remain one of the most effective upgrades for improving both appearance and braking value per dollar spent. Features: Dual-disc applications require a left and right caliper Use either OEM-style or Performance Machine rotors Available in Chrome, Contrast Cut or Black Ops finish Include brake pads, bleeder screw and banjo bolt Made in the USA Note: Fits models with 200mm rear tire.