Upgrade your kart or mini bike with this high-performance 40 Series Torque Converter set featuring precision-engineered components. The durable 3/4" driver pulley ensures smooth power transfer while the 10T 40/41 and 12T 35 chain sprockets offer versatile gearing options for optimal speed control. CNC-machined from premium billet aluminum with hardened steel bushings for extended wear resistance. Perfect replacement for Comet clutches in Predator engines, ideal for off-road racing, backyard tracks, or DIY small vehicle projects. Includes all necessary hardware for direct bolt-on installation with factory mounting patterns.