1.24V,36V,48V 180-250W 2.High efficiency,low noise 3.High torque,light weight 4.Powerful to climb 5 ... as below:1.24V,36V,48V 180-250W2.High efficiency,low noise3.High torque,light weight4.Powerful to climb5.CE ... manufacturer with a history more than 10 years. Best choice for short distance transportation.With our products,No need to worry ... a greener way of life! electric wheel hub motor for rear wheel