This clutch has wide compatibility and is suitable for various devices such as small karts, kids' karts, mini-bikes powered by small gasoline engines, small generators, small lawn mowers and small snow blowers, whose engine power is generally between 2 - 6.5HP. The kit contains 1 clutch, 4 nylon ropes, 1 spark plug, screws, 1 wrench and 3 oil filters, providing great convenience for installation or replacement. It features excellent performance. With a 5/8-inch aperture and 11T suitable for #35 chain, the precise aperture design ensures a perfect match with all kinds of equipment and maximizes the engine performance. Whether you are driving at high speed or low speed, it can stably transmit power and offer you an ultimate driving experience. Moreover, the installation is quite convenient. The provided screws and wrench make the installation or replacement process easy. Even if you have no professional maintenance experience, you can still complete the operation smoothly. It should be noted that this 5/8-inch diameter clutch is specially designed for karts with a tire height not exceeding 15 inches. To ensure the stability and safety of the equipment, when making a purchase, you must confirm whether the size of the chain is consistent to obtain the best user experience.