BBR Tuning Performance Spring Idler Pully Upgrade

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Sale price$17.97 Regular price$24.95


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.

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Customer Reviews

Based on 19 reviews
Ty Schooley
The chan fit perfect

Brock fish week

Darrin Johnson
Idler pulley

With all the other parts I got with the idler pulley everything seems to match up good. Had to get longer bolts and inside lock washers to shim the 🔩. The only question I have is to weather or not you have a special carb for the 2 stroke 66/80 cc engines.

sean clayton
Much better

Works better than just a fixed pulley

Stephen Hauk
Great tension!

The moment I put this spring idler I could notice a considerable difference in the chain tightness. I actually thought it was too tight at first, Just had to adjust the spring spacing then all was good. Great product overall just wish it had 4 mounting screws like the original tensioner.


I enjoy all your products. Your a great product with a lot of choices. I will be back for more.

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