An '''electric biycle''' provides power assistance to a [[bicycle]] rider, by use of a battery-powered [[electric]] motor. The motor is much quieter than an engine, and when mounted in the hub of a wheel it looks like a big disk brake. | An '''electric biycle''' provides power assistance to a [[bicycle]] rider, by use of a battery-powered [[electric]] motor. The motor is much quieter than an engine, and when mounted in the hub of a wheel it looks like a big disk brake. |