Drive chain tensioner for Viper 125-200 cc motorcycles and similar (China, Minsk). The tensioner maintains the proper tension of the rear wheel drive chain, keeping it from sagging and coming off the sprockets. The set includes two tensioners.
Replace it if the rollers or the arm are worn, the chain is noisy, wobbles and sags. A correctly tensioned chain extends the life of the sprockets.
A set of two pieces. Not sure whether the part will fit? Bring the old one or call us and we will help you choose.
