Performance MacHine Rear Caliper 11.5 Rotors Alu H-D FXST/C/S FLST/F FLSTN FLSTS Precision machined from billet aluminum Four-piston dual-action design for positive stopping power Available in polished, chrome, Contrast Cut and Black Ops finishes Contrast Cut finish starts with a polished caliper that has been black anodized the recut to open the design Black Ops is a gloss black finish on top of a contrasting textured black finish for outstanding toughness and design