... -auto,single cylinder. Max speed:55km/h. Max power:4.0kW/8,500r/min certification:CE,EPA, mini dirt bike ... speed:55km/h3)Bore*stroke:47X41.4 Ignition:CDI4)Starting systen:foot start engine oil:4.2L5)Clutch: automatic clutch Transmission: ... info"QTY/40`HQ: 240PCS SPECIFICATIONSQG-210ENGINE INFOEngine type70cc 4-stroke, semi-auto,single cylinderDisplacement70ccCoolingair-cooledMax horsepower4.0kW/8, ...