... : 50cc,70cc,90cc,110cc,125cc,single cylinder, air-cooling,4-strokeTransmission: 3 gears with one reverse gear,manual cluth/auto cluth4 gears ... reverse gear,manual cluth/auto cluth auto gearsauto gears: 50cc,70cc,90cc,110cc4 gears without reverse gear: 50cc,70cc,90cc,110cc,125cc3 ... .speed: 50cc<20km/h, 70cc<30km/h, 90cc<40km/h, 110cc<50km/h 125cc<55km/h in 3th gearPower source: 12V ...