Gasoline bike
Model:GBK-531
Features:
1) Displacement: 30cc
2) Wheel size: 20" to 24"
3) Speed: 50km/h
4) Volume of metal gas tank: 2L
5) Loading capacity: 90kg
6) Pedal starter or electric starter

Gasoline bike
Model:GBK-533
Features:
1) Motor: 250 - 350W brush or brushless
2) Battery:
a) 12V / 12Ah x 3pcs lead acid, 36V
b) 12V / 12Ah x 4pcs lead acid, 48V
3) Load capacity: 90kg
4) Speed: 28km/h
5) Distance/full charge: 40 - 80km
6) Charging time: 6-8hours