1 Overall Dimension Length?Width?Height: 1680?1090?1010mm 2 Proper Mass of Empty Vehicle: 170kg 3 Max Speed: ≦75km/h 4 Climbing Ability: ≦20° 5 Specification of Front Wheel: 21X7-10, 50Kpa 6 Specification of Rear Wheel: 21X9-8, 50Kpa 7 Type of Engine: ZS156MI 8 Efficient Capacity: 125ml 9 Max Power : 8.5KW 10 Max Torque: 9.5N.m 11 Compressing Ratio: 10.5:1 12 Gearshift Mode: Five speed 13 Starting System: Electrical Starting 14 Cooling System: Water cooling Welcome to viewed details information at my website: /typemore.asp?tid=18 For any commercial or technical question, please feel free to contact me by my e-mail.