C11
48V 250W / 48V 500W Real Motor,448V 10AH / 48V 15AH,20*3.0 /20"X4.0" inch E-City bike
48V 250W / 48V 500W Rear Motor provides powerful power suport for maximum speed of 25Km/h / 32Km/h, Shimano External 7 Speed system can adapt to different road conditions
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