CG125 motorcycle large teeth, sket type (428), number of teeth (37T) and installation size (106MM outer diameter, 58MM inner hole) are fully matched with CG125 rear wheel and transmission chain, suitable for Honda CG125, Zhujiang 125 and other top rod scooter, directly replace the original rear sket, without adjusting the transmission ratio; Using thick low carbon steel plate stamping molding, the tooth surface after high temperature quenching treatment, high hardness, tensile resistance, and long-term engagement with the chain is not easy to wear teeth, disk deformation; Multiple installation holes are reserved, which can be precisely fixed on the rear wheel hub. After installation, there is no slack and deviation, ensuring the stability of transmission; The disc body is reserved for weight reduction holes, which can reduce the weight while ensuring the strength, reduce the rotating load of the rear wheel, and improve the power transmission efficiency; The surface is coated with galvanized anti-rust coating, which is not easy to rust even in long-term contact with mud and water, and prolongs the service life of schain wheel.