Product Description: Enhance Your Ride with the Heavy Duty Chain Roller Tensioner Kit Fitment: This chain roller tensioner kit is designed as a replacement for popular models such as Coleman Powersports CT200U, Baja Motorsports, Hensim, and TrailMaster. Ensure easy integration and optimal performance for your mini bike or go-kart. High Strength Material: Both the chain tensioner and the 420 chain are crafted from high-quality steel alloy, ensuring they are wear-resistant, rust-proof, and durable. Built to last, these components provide long-term reliability and are easy to install and operate. Tensioner Function: As a crucial part of the drive system, the chain tensioner ensures proper chain tension and alignment, preventing derailment during rides. Maintain smooth and efficient motion with this essential component, reducing the risk of mechanical issues. Chain Function: The 420 chain is designed to maximize engine life and efficiency. With a main chain link that allows for easy length adjustment, you can customize the chain to fit the specific needs of your mini bike, ensuring optimal performance. Package Included: The kit comes complete with one chain roller tensioner, one spring, one 420 chain with a 42-link configuration, and two master links. This comprehensive package ensures high reliability and easy setup, providing everything you need for a complete upgrade. Upgrade your drive system with our Heavy Duty Chain Roller Tensioner Kit. Engineered for durability and performance, this kit is perfect for keeping your mini bike or go-kart running smoothly and efficiently. Enjoy enhanced reliability and performance with components designed to withstand the rigors of the road.