CG125 motorcycle transmission chain, model (428H), number of joints (102L) and CG125 size tooth completely match, directly replace the original chain, no need to adjust the transmission ratio or truncation, strong adaptation; With thickened roller + high strength chain, the tensile strength reaches more than 8000N, which is 30% higher than the tensile capacity of ordinary chain. It is not easy to break and elongate when riding under heavy load. The roller and pin shaft are carburized and quenched, the hardness reaches HRC55+, and the wear rate is low when meshing with the size of the teeth, and the service life is 2 times that of the ordinary chain; The chain clearance is precisely controlled, the roller and the tooth disk mesh smoothly during operation, the mechanical noise is 15% lower than the ordinary chain, and the riding is more quiet.