... racing, wake up your desiring to ride. 50cc Engine type:139QMBEngine style:single-cylinder, 4-strokeBorexstroke (mm ... 120/70-12Rear tire:120/70-12Wheel:aluminum125cc Engine type:152QMI Engine style:single-cylinder, 4-stroke, air-cooled ... 120/70-12Rear tire:120/70-12Wheel:aluminum 150cc Engine type:157QMJEngine style:single-cylinder, 4-stroke, air ... 40ft:50 units40HQ:75 units 50cc/125cc/150cc SPORTY