20 inch Electric Bike Folding Electric Bicycle 25KM/H Pedal Assist 250W 48V16AH

CHEEVALRY C16 Folding Electric Bicycle 250W 48V 16Ah for Adults. Equipped with a powerful 250W brushless motor, the standard speed is set at 25 km/h (adjustable). Rated Power: 48V 250W. What is particularly important for an electric city bike?.