Performance Machine P00231526JJB Right Hand Rear Caliper Mount Black for Softail 87-99Performance Machine Black Vintage Style Rear Caliper Bracket 0023 1526JJ B For Models with 11. 5 in. Rotors Get their braking power from Performance Machine's proven 4 piston internals, but have taken their styling cues from our Dual Action Cast caliper The reminiscent, CNC machined fins give the caliper its vintage style while keeping the caliper cool and providing optimal braking power with no flex The precision machined Performance Machine logo