Raw metal on black contrast calipers is anodized for a long-lasting high-quality finish Two piston designs for various H-D models (including rigid frames) Hanger brackets and brake pads included For use with 11.5" rotors Made in the U.S.A. The OLD-STYLE Wagner and Kelsey-Hayes (die-cast aluminum OEM) on rear applications have a 3/4" bore master cylinder and WILL NOT WORK CORRECTLY. Not recommended for use with imported stainless steel rotors. Requires use of 5/8" bore master cylinder.. CALIPER RR RIGID10"CL ANO