The 47mm piston for ring kit is specifically designed to enhance the performance and reliability of a 70cc horizontal engine, offering enhanced functionality for popular models like the CRF70, CT70, XL70, and CL70. This kit comprises essential components to accommodate the increased piston size, ensuring seamless integration and optimal engine operation. The premium-grade materials and precise machining ensure longevity, durability, and efficient power delivery. With this kit, you're taking the first step towards optimizing your motorcycle's potential while maintaining safety and reliability standards.