Front drive sprocket for Viper 125-200 cc motorcycles and similar (China, Minsk). The drive sprocket sits on the engine output shaft and transmits force to the rear wheel drive chain. The number in the name is the number of teeth: the fewer there are, the more dynamic the acceleration; the more there are, the higher the speed on the highway.
Replace the sprocket when the teeth have taken on a "shark fin" profile, and chain play and whining have appeared. It is better to replace sprockets as a pair with the chain, otherwise the new part wears out quickly. The name states the 428 chain and 14 teeth.
