DONSP1986 New Spring Chain Tensioner Kit-New Chain Idler Assy for 48cc-60cc-66cc-80cc Gas Motor Bicycle

1:Material: Steel .Two colors of item are delivered at random. Spring Chain Tensioner Kit for 2 stroke kit 48cc/66cc/80cc; Engine kit is not included! This listing is only for the chain tensioner kit. 2: cut off a little engine chain guard to make it compatible with the new spring chain tensioner if uncompatible with engine chain guard.Forget this point if your bike doesn’t get the engine chain guard; 3:Simple, clean design, and very effective. Improve your bike's reliability! 4:Tools Required when you install it