This is a 2 disc 6-spring clutch with ball levers. It is used in the Limited Briggs Flathead class on a track requiring very light clutch usage. Light clutch usage would be a result of either a light kart, or a track that is very large with wide, sweeping corners that do not require frequent clutch engagement. This clutch is set with anapproximate 4900 RPM engagement from the factory, but can easily be adjusted from 4900 RPM to 5700 RPM. This clutch is available in 11T-21T, and comes with a 098-300A aluminum basket.