sthusBlack Spring Loaded Chain Tensioner For 49cc 66cc 80cc Engine Motorized Bike 2 Stroke Engine

When I received this item today I got to work on installing it. I was amazed on how good it works. Thank you.

Good product I don’t have a 50cc bike I’m going to use the parts. And make a custom tensioner for my drift trike

Was a challenge to get on but worked well when on

Adjustable tension and good placement make this a worthy alternative to the factory tensioners for 2 stroke bicycle kits. Make sure to use plenty of light grease. After a few years and hundreds of miles the bearing hasn't shown very much wear at all. Some side play but not a huge deal

I'd say the quality of the screws and metal is alright. The parts might come in handy in the future. I may not have set this correctly, so thats possible. My trouble was with the arm twisting. I might have set it too tight. I just can't take that chance of it twisting and failing while riding. Probably fine for people who like these and know more than me about the setup.

Bolt got in way of me pedelonl feel off yesterday day

One Star is solely due to the fact that this should not be listed under Bicycle accessories, because it is not for Bicycle.Designed for Motorcycle only !

I recommend this for any engine. Be careful because the spring can pop off if you accidentally kick it and your pant leg can get caught on it