The hub motor is brushless and uses a technology called Pulse Wave Modulation control, so that its not subject to wear like a regular DC motor. Planetary reduction gears incorporated into its hub gives it a very strong torque, working in unison with your leg power to flatten out those hills and to overcome headwinds. Under normal cruising conditions (26 kmh, 16 mph), the motor draws about 5 amps at 140 watts with 5 Nm torque and has an efficiency about 80%. Its electric consumption is about 1.0