Upgrade your go-kart, mini bike, or small engine project with this Max-Torque centrifugal clutch. It’s made in the USA and built to handle the torque of smaller engines, fitting a standard 5/8-inch bore. Designed to work with #410 or #415 bicycle chain, it engages smoothly as engine RPMs increase—perfect for automatic shifting without a manual clutch. Great for DIY builds, replacements, or repairs. Brand new in its packaging, ready to bolt on. Whether you’re building a kart from scratch or fixing an old one, this clutch is a reliable, straightforward component. Durable construction ensures it lasts through plenty of rides. Mechanics and hobbyists trust Max-Torque for consistent performance. If you want simple, automatic power transfer for your small vehicle, this clutch does the job. No complicated setup, just install and go. A must-have part for any go-kart enthusiast.