MANUFACTURED FROM T420 STAINLESS STEEL. POLISHED TO A MIRROR FINISH. LOOK GREAT ON CUSTOM CHOPPERS AND STOCK ALSO AVAILABLE FOR 2000'-UP APPLICATIONS. NOTE: STOCK OEM HARLEY PADS ARE NOT RECOMMENDED FOR THE POLISHED ROTORS. WE RECOMMEND LYNDALL RACING BRAKES Z-PLUS COMPOUND (ORGANIC - CARBON KEVLAR) OR ANY BRAND (ORGANIC - CARBON KEVLAR) COMPOUND.