GMA-103SASC Published March 10, 2015 at 300 × 338 in GMA-103SASC GMA-103SASC GMA-103SASC SMOOTH CHROME REAR 1985-99 FXR 11.5 ROTOR 5/8″ BORE M/C This kit includes a machined bracket that fits around FXR square swing arm. It is a direct replacement bolt-on kit for FXR bikes. Kit requires 5/8″ bore master cylinder.