150cc racing atv motorcycle Xracer 1) 150cc GY6 engine 2)four whell disc brake shukeda,ATV,dirt bike,pocket motorcycleExperience the Newly Design of ... type: GY6 engine, fully automatic, single cylinder, 4-stroke, forced air-cooled2) Engine displacement: 149.6ml3) Bore x stroke: 57.4 ...