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  2. Whizzer (motorcycles) - Wikipedia

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

    In 1948, Whizzer sold its first pre-assembled motorized bicycle, the "Pacemaker", for US$199.50 (equivalent to $2,500 in 2023). [ 1 ] The "Sportsman" – featuring 138cc, 3 hp engine, 20" wheels, kick starter and drum brakes – was released in 1949 for US$224.50 (equivalent to $2,900 in 2023), and US$239.50 (equivalent to $3,100 in 2023) for ...

  3. RevoPower - Wikipedia

    en.wikipedia.org/wiki/RevoPower

    The RevoPower is a motorized wheel concept, the idea being the conversion of a pedal-powered bicycle into a motorcycle. It was invented by Steve Katsaros, based in Denver , Colorado. The RevoPower concept is a wheel with a two-stroke engine inside it which allows the bike attached to it to travel up to 20 miles per hour (32 km/h) at over 100 ...

  4. Simplex Manufacturing Corporation - Wikipedia

    en.wikipedia.org/wiki/Simplex_Manufacturing...

    The original Servi-Cycle design had the engine drive the rear wheel by belt, with no transmission or clutch, requiring the engine to be shut off while the cycle is at rest. [8] In 1941, a pedal-operated clutch was added. [10] By 1950, Simplex added a belt-type automatic transmission.

  5. Motorized bicycle - Wikipedia

    en.wikipedia.org/wiki/Motorized_bicycle

    A VéloSoleX motorized bicycle. A motorized bicycle is a bicycle with an attached 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 ...

  6. 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.

  7. VéloSoleX - Wikipedia

    en.wikipedia.org/wiki/VéloSoleX

    The company manufactured centrifugal radiators, carburetors, and micrometers, before branching into assist motors and bicycles. The moped originally created during World War II and mass-produced between 1946 and 1988 came in various iterations, whilst keeping the same concept of a motor with roller resting on the front wheel of a bicycle.