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  2. Whizzer (motorcycles) - Wikipedia

    en.wikipedia.org/wiki/Whizzer_(motorcycles)

    Whizzer bicycle engines are a line of bicycle engines that were produced in the United States from 1939 to 1965. They were commonly sold as kits to be assembled and attached to a consumer's bicycle thus creating a motorized bicycle. Whizzer U.S.A. re-appeared in 1997 to sell an improved version, pre-assembled on an old Schwinn-style bicycle frame.

  3. Motorized bicycle - Wikipedia

    en.wikipedia.org/wiki/Motorized_bicycle

    A VéloSoleX motorized bicycle. A motorized bicycle is a bicycle with an motor or engine and transmission used either to power the vehicle unassisted, or to assist with pedalling. Since it sometimes retains both pedals and a discrete connected drive for rider-powered propulsion, the motorized bicycle is in technical terms a true bicycle, albeit ...

  4. Electric bicycle - Wikipedia

    en.wikipedia.org/wiki/Electric_bicycle

    S-Pedelec class e-bikes are therefore usually classified as mopeds or motorcycles rather than as bicycles and therefore may (depending on the jurisdiction) need to be registered and insured, the rider may need some sort of driver's license (either car or motorcycle) and motorcycle helmets may have to be worn. [24]

  5. Category:Motorized bicycles - Wikipedia

    en.wikipedia.org/wiki/Category:Motorized_bicycles

    This page was last edited on 8 December 2023, at 19:36 (UTC).; Text is available under the Creative Commons Attribution-ShareAlike 4.0 License; additional terms may apply.

  6. Bicycle helmets in the United States - Wikipedia

    en.wikipedia.org/wiki/Bicycle_helmets_in_the...

    There are a total of 22 state laws for bicycle helmets and 201 local laws. [1] Each year about 2% of motor vehicle crash deaths are bicyclists. In a majority of bicyclist deaths, the most serious injuries are to the head. [3] Helmet use has been estimated to reduce the odds of head injury by 50%, and the odds of head, face, or neck injury by 33 ...

  7. Motorized tricycle - Wikipedia

    en.wikipedia.org/wiki/Motorized_tricycle

    Motorized trike in Bristol, England The Mego 250S 3-wheeler was originally introduced in 1962 and produced, with upgrades (with or without cab), for 25 years. A motorized tricycle, motor trike, or motortrycle is a three-wheeled vehicle based on the same technology as a motorcycle, and powered by an electric motor, motorcycle, scooter or car engine.