Specifications: 1) Motor power: 250W / 350W brushless 2) Battery: 48V / 12Ah 3) Charger: 110V - 240V / 50Hz - 60Hz 4) Charging time: 6 - 10 hours 5) Speed: about 30km/h 6) Range: about 60km - 100km 7) Brake: drum brake (front and rear) 8) Product dimensions: 9) Loading: 120kg 10) Colors: silvery white, dark blue, green, black, orange, red, yellow, light blue 11) All styles of electric bicycles and electric motor bikes are available as per buyers\'\' requests