Konverzní kit /set/ 750W/36V - 1000W/48V přední kolo - Elektrokola Michal
Source Joyebikes bafang M510 G522 36v/43v/48v 250W mid drive motor electric bike conversion kit on m.alibaba.com
Ebike Conversion Kit, 12V 250W Electric Bicycle Motor Kit with Controller, 2750rpm High Speed Mid Drive Electric Bike Motor Kit for Electric Scooter, Motorcycle, Electric Bike, Electric Tricycle, etc, Electric Bicycles -