Replacement left front rotor adapter for Sprint Midget front hubs. Adapter features a hub mount bolt circle of 3 x 5.00 and will mount 9 x 7.00 bolt circle rotors. Made from high strength aluminum alloy with a corrosion and wear resistant Type III hard anodize finish. Use 230 - 10800 Dynamic Rotor Bolt and T - nut Kit for rotor mounting.