Designed to provide optimal chain performance, the BBR Tuning Performance Spring Idler Pully Upgrade will revolutionize how you see chain tension. Installed on the engine’s chainstay this component, unlike other idler pulleys, features a spring-loaded design. The result is a pulley system that will not only keep consistent chain tension but one that will even provide reduced stress. So, whether you are looking for a replacement idler or want to upgrade to a more performance mechanism, you can trust the BBR Tuning Performance Spring Idler Pully Upgrade to provide the durability you need and quality you deserve.

The Spring Loaded Idler Pulley will maintain consistent pressure on the chain to maximize performance. It will reduce stress on the chain and keep a consistent tension through any ride. This aftermarket performance upgrade comes with all the hardware for installation. Compatible with all 2-stroke 48cc/50cc/66cc/80cc engine kits as well as 4-stroke 50cc engine kits.