GCIUEMMH 4 Stroke Engine Motor - 125CC Engine Motor Complete Kit 4 Speed ATV Motor Engine Horizontal Motor with Air-Cooling 2 Stage Transmission Single Cylinder Engine for Motorcycle Go Kart Dirt Bike

【Powerful 4-Stroke Engine】- The 4-stroke engine can provide higher intake and exhaust efficiency, saving energy and fuel (Min. Fuel Consumption: ≤367g/kW.h). It can provide stronger power (Max. Power: 6.5 kW/7500r/min±375r/min) during driving and ensure that your drive will be very smooth and powerful. 【Durable Design & Effective Cooling System】- Designed with premium aluminium and cast steel, this engine has high hardness, wear resistance. So it can adapt to complex environments and conditions.By adopting an air cooling system, the temperature of the engine can be quickly reduced, effectively preventing overheating and ensuring smooth and long-lasting driving. 【4-Speed Precise Control】- Its 4-speed manual clutch transmission provides you with high-precision gear shifting control, so it allows you to easily adapt to various changes. It makes your driving experience more exciting under different road conditions. 【Shockproof Installation Hole & Metal Crankshaft】- It is used to install shock absorbers to reduce the vibration of the motorcycle during driving, thereby improving its driving comfort.The crankshaft adopts high-quality metal design to ensure extremely high safety and stability during operation. 【Widely Application】- This engine fits for such motorcycles as HONDA CRF50/CRF70/XR50/XR70/Z50/Z50R/CT70 Mini Trail/Z50/Mini Trail Monkey/XL70 ST70/QA50/QR50/CL70/SL70/70 Passport/ST 90K2/ST 90K1/CS 90/SL 90/ZB 50.