- Wire Harness Kit for 4-Stroke Engines: This replacement harness kit is designed specifically for 49cc, 50cc, 70cc, 110cc, 125cc, and 140cc dirt and pit bikes, ensuring compatibility and reliable performance. - Wide Compatibility: Suitable for Lifan, Loncin, Zongshen, YX, and additional brands. It seamlessly fits numerous models including XRCRF, SDG, SSR 110, CT70, ST70, Z50, Z50R, Z50 Roketa, and many 50cc to 125cc dirt bikes. - Enhanced Performance: This wire harness kit ensures optimal electrical connectivity, providing smooth operation and reliable starting for your bike. It addresses common electrical issues that can hamper performance. - User-Friendly Installation: Designed for easy installation, this kit includes all necessary connections, making it perfect for DIY enthusiasts or professional mechanics looking for a straightforward solution. - Practical Applications: Ideal for restoring functionality in older models or upgrading electrical systems in newer bikes. Whether you're repairing a dirt bike for racing or maintaining a pit bike for recreational use, this harness kit is a vital component. - Durable Design: Constructed with high-quality materials, this wire harness kit is built to withstand the rigors of off-road riding, ensuring long-lasting performance and durability even in challenging environments. - Comprehensive Solution: Whether for maintenance, upgrades, or replacements, this wire harness kit provides a reliable and effective solution for your dirt or pit bike electrical needs.