An electric bicycle also known as an e-bike or ebike is a bicycle with an integrated electric motor which can be used to assist propulsion. Many kinds of e-bikes are available worldwide, but generally fall into two broad categories. Bikes that assist the rider's pedal-power (i.e. pedelecs) and bikes that add a throttle, integrating moped-style functionality. Both retain the ability to be pedaled by the rider and are therefore not electric motorcycles.