High-performance OEM Zongshen CB250-F engine with precision engineering for Sportbikes and custom builds. Durable 250cc 4-stroke fuel engine delivers smooth power and reliability for both street and track use. Direct factory pricing ensures unbeatable value for bulk orders or individual upgrades. Lightweight aluminum alloy construction with advanced cooling for optimal heat dissipation during high-speed riding. CNC-machined components and hardened steel gears for extended lifespan under heavy loads. Perfect for motorcycle enthusiasts seeking affordable yet professional-grade engine replacements or project builds. Global wholesale supplier with strict quality control and fast shipping.