How about Zongshen Jinzhan 3 engine?

Zongshen Jinzhan 3 engine is quite good. According to the relevant information, Zongshen Jinzhan 3 engine case and cover adopt compact structure, which is convenient for off-road motorcycle installation, strong explosive force and fast speed-up, especially to meet the requirements of off-road vehicle for speed-up performance. The crankshaft connecting rod is optimized for vibration design, which greatly improves the driving comfort of the whole machine. An engine is a machine that can convert other forms of energy into mechanical energy.