GMA-103SAB Published March 10, 2015 at 300 × 348 in GMA-103SAB GMA-103SAB GMA-103SASB SMOOTH BLACK 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.