13mm kickstart shaft and spring compatible with - 125cc engines. Fits pit dirt bikes and similar models. Replacement part for kick start mechanism. Suitable for engine repair and maintenance. Material: steel construction. Designed for smooth and performance. Easy to install with standard tools. Compatible with various 125cc engine models. Ideal for replacing worn or damaged components. Note: Verify compatibility with your specific engine before purchase. Compatibility Disclaimer: This is an aftermarket replacement part.Any brand names or model designations mentioned are used solely for the purpose of demonstrating compatibility.