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The electrical bicycle is more than anything a bicycle and not a motorbike
It shouldn't be confused with another vehicle wich is also currently being developed, namely the electric motorcycle. there are marked differences. An electric motorbike is more or less a conventional motorcycle, the only variation being the motor; but an electric bicycle is, basically, a bicycle designed so that the muscular effort made by the cyclist is optimised, while that effort remains the main energy input. Its electric motor merely adds energy to what the rider already produces.
The process is identical to that of a conventional push-bike, but a computer is in charge of the motor. For this reason the electric bicycle has sensors that continually monitor the speed of pedalling and the work rate of the cyclist. When there is no great hurry, or on flat or downhill stretches, it is perfectly possible to ride with the motor disconnected, but when in use it will add, in no case, more than 50% to the rider's own energy input.
This can seem insignificant, but experience has shown that this combination of two energy sources, muscular and electric, can deliver average speeds of about 22 miles per hour, can clib gradients of more than 20%, with an operational range of over 20 miles rising up to 60 miles in the case of a trained cyclist - much further than an electric motorcycle.
With an electric bicycle we can make longer journeys than with a push-bike and at greater speed. Steep slopes are no longer an obstacle and night riding is safer because the cycles's halogen lamps are fed directly from the battery and remain alight when the vehicle is stationary. In winter the cyclist remains warm from his own exertions, unlike the motorcyclist, and these same exertions are good for his health. He can use mudguards, obviating the need for protective clothing, and panniers for work or shopping needs.
Thus an electric bicycle requires physical work as does a normal bike; but these modifications bring its level of usefulness close to that of a motorbike, allowing us to undertake journeys which would be too long or too hard on a normal push-bike. The need to contribute pedal power also adds to the operational range, and gives another important plus over other motor vehicles. When the battery or other energy source runs out, one can cantinue on pedal power alone, albeit with a slight increase in effort.
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