Key Specifications/Special Features: Displacement: 144ml Engine type: 4-strock , 5-gear, air-cooled Cylinder type: single cylinder compression ratio:10:1 Max power: 10.8km/8000r/min Max torque: 13N.m/6500r/min Ignition: CDI Transmission: 5 speed with reverse gear Start: electric Overall size: 1650 x 860 x 790mm