1- engine: 250cc, double-cylinder, four stroke 2 -overall dimension l×w×h: 1800 x 1100 x 1100 mm 3- proper mass of empty vehicle: 210kg 4 - max speed: 80km/h 5 - climbing ability: ≤30° 6 - specification of front wheel: 21×8-10,50kpa 7 - specification of rear wheel: 22×11-8,50kpa 8 - type of engine: 233fmm 9 - efficient capacity: 229.6ml 10 - rated power and rotate speed: 12.5kw/850 11- rated torque and rotate speed: 15n.m/7500r/min 12 - compressing ratio: 9.5:1 13 - gearshift mode: five speed 14 - starting system: electrical starting 15 - cooling system: air cooling 16 - drive model: chain-driven 17 - front/rear brake: disk/disk brake loading: 20ft=12 units 40ft=26 units