Polini Piston (70cc Contessa Big Bore); compatible with Dio

Polini Piston (70cc Contessa Big Bore); fits Dio Replacement piston for the fits Dio Contessa big bore kit, part number 1100-1457 (Polini - 119.0077). and Polini part number: 204.0680Not legal for use in California on pollution controlled vehicles. Check local laws before installing.