Enhance the durability of your go-kart or mini bike with the AlveyTech 4-3/4 Long 14 Tooth Heavy Duty Clutch Assembly. This clutch is crafted with high-quality materials to ensure long-lasting reliability. Its heavy-duty design makes it ideal for demanding applications providing smooth and consistent engagement. Compatible with #40/41/420 chain sprockets this clutch offers versatility enabling seamless integration with a wide range of vehicles. The precise 1 bore shaft and 1/4 keyway slot ensure secure attachment to your engine minimizing the risk of slippage during operation. Installation is effortless requiring only basic tools and minimal expertise. The AlveyTech heavy-duty clutch assembly ensures reliable performance and an extended lifespan for your go-karts or mini bikes.