conversion kits covering a hub motor,a controller,brake,rims and twist throttle It's easy to installation Specification: 

1.Germany type motor(180°C copper winding+ best magnet)

2.Double-wall alloy rims spoke (2.6mm spokes spoked by park tool)

3.twist throttle( with three lights shows battery capacity)

4.brake(for both side power off)

5.48V 22A-25A controller (12MOZ tubes in it)GERMANY QUALITY

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