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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 ...
As Wired magazine's transportation editor Damon Lavrinc reported after an experiment of trying to go six months using nothing but a Zero electric motorcycle: "[w]ith only a battery, a motor, and a black box (i.e. the controller) to keep you moving, electric motorcycles are a breeze to maintain compared to a conventional motorcycle, what with ...
Aventon's Pace 500.3 is an average budget-friendly cruiser-style e-bike. It has an upright design with swept-back handlebars, a cushioned saddle, and puncture-resistant tires. Designed for leisurely rides, or comfortable cruising with a 500-watt rear hub motor that has a 28 mph top speed and up to 60 miles in range. [6]
A development of the motorized bicycle is the moped, which commonly has only a vestigial pedal drive fitted primarily to satisfy legal requirements, and suitable only for starting the engine or for emergency use. The alternate design philosophy to the moped is the so-called motor-assist or pedal-assist bicycle. These machines utilize the pedals ...
Fine motor skills are the coordination of small muscle movements which occur e.g., in the fingers, usually in coordination with the eyes. In application to motor skills of hands (and fingers) the term dexterity is commonly used. The term 'dexterity' is defined by Latash and Turrey (1996) as a 'harmony in movements' (p. 20).