Engine type: single cylinder, Air-cooled, 4-stroke Transmission system: Chain drive Starting system: Electric/kick Transmission: 4-speed, automatic Front/Rear wheel (inch): 10 Seat height (mm): 860 Battery: 12V-5A Lubricant: pressuring splash Rider capacity: 1 person Dimension (L*W*H)(mm): 1600*750*990 Wheel Base (mm): 900 Net Weight (kg): 55 Max. Load (kg): Spark Plug: AT7C Spark Plug Gap:0.6?0.7 Compression Ratio:10.5:1 Standard Power (kw/r/min): 5.0/8500 Max. Torque (N.m/r/min): 7.5/6500 Max. Speed (km/h): 75 Bore*Stroke (mm): 52.4*49.5 Idle Speed(r/min): 1500 Broke Distance (30km/h): 7M Displacement (ml): 107 Climbability: 30 Frame comp: with upside down front fork, almost the metal parts are the aluminum, such as frame, handle bar, steering system, rim, cap of the fuel tank, etc.