Cylinder Works 21-23 Gas-Gas MC 50 50cc Standard Bore Cylinder Kit

Professional Grade Engine Restoration for 50cc Racers. This precision-engineered OEM Replacement allows you to swap worn components for a fresh, bolt-on top end. It features a nickel silicon carbide-plated cylinder for extreme wear resistance and superior heat dissipation, paired with premium Vertex pistons for optimal ring seal and performance. The kit offers a direct bolt-on design, includes a complete gasket set, and is a 39.50mm standard (STD) bore kit. Made in the U.S.A., this kit is a reliable solution for returning your Gas Gas or KTM to the track with factory-level reliability and power delivery.