Upgrade your Harley-Davidson® with Performance Machine Radial Mount Calipers and brackets. The Radial Mount design anchors the caliper next to the rotor's entrance point and exit point yielding a caliper that is stiffer than traditional calipers and holds a more precise caliper to rotor alignment. By simply using the PM Radial Mount caliper bracket and adapter kits, any 2000-Up H-D® can be converted to PM Radial Mount braking technology on applications with 11.5", 300mm, or 13" front rotors (except Springer models). Brackets are also available for 2008-17 Dyna rear brake applications. May require custom brake lines.