Fits Honda Z50 K0-81
88cc Big Bore kit and 20mm Carburetor kit: - Lightweight aluminum cylinder with steel sleeve - Cast in mounts on cylinder for aftermarket skid plates - Oversized cooling fins on cylinder for efficient heat dissipation - High compression 52mm piston with rings, pin, & clips, head gasket kit - 20mm Performance carb assembly. Includes: 20mm carb, intake, heatstop, gaskets, mounting hardware/wrench, air filter and long throttle cable. A main jet kit is now included too! Easily double your power and fun with this quality, yet economical bore kit!! We recommend purchasing a Race Petcock, Larger front sprocket and HD Clutch kit (available in this section).