The 12 Tooth #41 Needle Bearing Clutch is a high-quality and durable clutch designed for mini go-karts. This clutch features a needle bearing design that provides smooth and consistent engagement, as well as improved durability and longevity. With 12 teeth and compatibility with #41 chains, this clutch is perfect for mini go-karts that require reliable and efficient power transfer. Whether you're hitting the track or just cruising around, the 12 Tooth #41 Needle Bearing Clutch is a great choice that will help you get the most out of your mini go-kart. Made exclusively for 3/4" shaft Mini Go-karts and Minibikes.