R7
48V 250W/48V 500W,48V 15AH，20"*4.0" Inch E-Fat bike
The 48V 250W/48V 500W Rear Motor provides powerful power suport fora maximum speed of 25km/h-32km/h, SHlMAN0 extemal 7-sped transmision system can adapt to diferent road conditions
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