The motorcycle cylinder liner kit is designed for the HJ125-8 model, compatible with a 56. 5MM piston ring assembly engine part. It ensures proper fit and function for engine maintenance and repair. The kit includes necessary components for installation and is made to meet standard specifications. Suitable for replacement or upgrade purposes. Compatibility Disclaimer: This is an aftermarket replacement part. Any brand names or model designations mentioned are used solely for the purpose of demonstrating compatibility.