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6 Crazy Bikes You Have To See To Believe: Under electric drive of a bicycle which essentially are components electric motor , traction battery (battery) and controller and their interaction understood. In Europe and Japan, the electric drive is most often in the so-called pedelec used, it only supports the cyclist while pedaling and the bike does not drive completely even. The development of so-called pedelecs is progressing rapidly. While in previous years, the hub motor was more widespread, are very many wheels with today (2016) mid-engine built. A bicycle hub motor has a relatively large diameter, because the relative speed between the stator and the magnetic poles of the rotor an electric motor has a minimum value can not fall below submit to a required power. When hub motor with built-in gear to underdrive the stator runs correspondingly faster, it may be smaller. Due to its lower weight and moment of inertia of this is preferred when front-wheel drive. The steering is almost not difficult, because the gyroscopic moments are smaller. The engine usually works via a freewheel on the hub, so that he does not have to be rotated in pure pedal operation. If the motor's own freewheel is missing, the built-up magnetic fields still have a braking effect of about 500-1000 meters even after the engine has been switched off. If you like our video, Please comment, like our video and share with your friends. Subscribe us to get update: https://www.youtube.com/channel/UC9JQsCTJIPKB16B8pEqyOPA?sub_confirmation=1 Please follow us on: -------------------------- Facebook Page: https://www.facebook.com/crazystudioofficial Twitter: https://twitter.com/CrazyStudio3 Google Plus: https://goo.gl/5JxIvR --------------------------------------------------------- Music Credit: http://www.bensound.com/