125CC 56.5mm CYLINDER PISTON GASKET KIT w/ 15MM PIN for CG125 TMX125 JX125 TMX JX CG 125 156FMI This kit includes a cylinder, piston, gasket set, and a 15mm wrist pin designed for compatibility with 125cc engine models.The components are engineered to fit engines used in certain motorcycle applications with 56.5mm bore size.The piston is equipped with matching ring grooves and -machined surfaces to support proper sealing and performance.Gaskets are included to complete assembly of the cylinder head, base, and exhaust connections.The kit is intended for use during engine rebuilds or replacements where standard dimensions and component integration are required. This is a compatible aftermarket component.Brand names are cited solely to show which devices it works with.