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E-bikes are classed according to the power that their electric motor can deliver and the control system, i.e., when and how the power from the motor is applied. Also the classification of e-bikes is complicated as much of the definition is due to the legality of what constitutes a bicycle and what constitutes a moped or motorcycle.
Pedelec hub motor with gearbox Smart e-bike motor. Almost exclusively, pedelecs use DC motors, using commutator-less and brush disc motors, which are suitable for direct drive, and brush motors with gears. Hub motors were available with internal gears but most present ones use many poles, e.g. 84 electromagnets in the stator and 84 thin magnets ...
The laws on electric motor-powered bicycles or E-bikes vary considerably according to country. In many nations, a top limit on the power of the electric motor is imposed if the vehicle is to be legally classified and/or taxed as a motorized bicycle.
Powered by a bank of storage batteries, the motor was placed in front of the rear wheel. Speed control was by a resistance placed across the handlebars. This electric bicycle was mainly intended for racetrack use. [3] The October 1911 issue of Popular Mechanics mentioned the introduction of an electric motorcycle. It claimed to have a range of ...
An electronic speed control (ESC) is an electronic circuit that controls and regulates the speed of an electric motor. It may also provide reversing of the motor and dynamic braking . Miniature electronic speed controls are used in electrically powered radio controlled models .
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