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.