Features: 1.Applicable Models: Suitable for 40, 41, 420 roller chain, up to 13hp, commonly used in go kart, mini bike, 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_x005f_x000D_ Material: Metal alloy_x005f_x000D_ _x005f_x000D_ Number of Teeth: 14T_x005f_x000D_ Center Aperture: Approx. 25.4mm/1in_x005f_x000D_ Application:_x005f_x000D_ Suitable for Go karts, mini bike, for 40, 41, 420 roller chain