Drive chain tensioner for Active mopeds. The tensioner maintains the correct 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, whips or sags. A properly tensioned chain extends the life of the sprockets. When replacing it, inspect the neighboring parts of the assembly: they often wear out at the same time.
Set.
