... Engine type: GY6 engine, fully automatic, single cylinder, 4-stroke, forced air-cooled Trike bike1) Engine type: GY6 engine, fully automatic, single ... cylinder,4-stroke, forced air-cooled2) Engine displacement (ml):50/ 149.63) Bore x stroke ... capacity:7L7) Fuel consumption (g/kWh): 3678) Start mode: electric start9) Tires (front/rear):3.5-10/18x9.5-810 ...