Features: 1. Applicable Models: Suitable for 40, 41, 420 roller chain, up to 13hp, commonly used in go karts, mini bikes, engagement speed up to 2300 RPM. 2. High Performance: 14T design ensures higher clutch speed, providing faster acceleration and better performance for your go kart. 3. Sturdy Construction: Clutch is made of metal alloy material, high hardness, good toughness, wear resistant and durable for long time use. 4. Flexible Operation: The clutch has excellent operational flexibility and responsiveness, allowing you to better control the speed of your go kart. 5. Ideal Replacement: The clutch is a direct replacement for old and damaged one, providing you with a better riding experience. Specification: Item Type: Go Kart Clutch Material: Metal alloy Number of Teeth: 14T Center Aperture: Approx. 25.4mm/1in Application: Suitable for go karts, mini bikes, for 40, 41, 420 roller chain