To convert your normal bicycle into an electric one:
* 24v Hub Motor 250W
* 24v 30+30..60mh Powder Battery, 60km mileage, 1-month warranty
* 24v Hub Motor 250W
* 24v 15ah Phosphate New Battery Cell, 30-40km mileage, 6-month warranty
* 24v Hub Motor 250W
* Charger...