Engine:4-strokes, one cylinder, air cooling Driver sytem: chain transmission Displacement: 49cc/70cc/90cc(optional) Rated power and rotate speed: 3.7kw/8500r/min Max torque and rotate speed: 4.5N.m/6500r/min Suspension (front/rear): dual/single absorber Clutch mode: automatic(CVT) Tire (front/rear): 145 x 70-6/145 x 70-6 Fuel tank capacity: 4.0L Starting system: electric Brake system (front/rear): no/hydraulic disc Max speed: >45km/h G.W/N.W: 85/76kg Carton size: 116*65*65cm