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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. List of motorcycles by type of engine - Wikipedia

    en.wikipedia.org/wiki/List_of_motorcycles_by...

    Motorcycles with a V-twin engine mounted with its crankshaft mounted in line with the frame, e.g. the Honda CX series, are said to have "transverse" engines, [1] [2] while motorcycles with a V-twin mounted with its crankshaft mounted perpendicular to the frame, e.g. most Harley-Davidsons, are said to have "longitudinal" engines.

  4. Four-stroke engine - Wikipedia

    en.wikipedia.org/wiki/Four-stroke_engine

    Four-stroke engines are the most common internal combustion engine design for motorized land transport, [1] being used in automobiles, trucks, diesel trains, light aircraft and motorcycles. The major alternative design is the two-stroke cycle .

  5. Motorized bicycle - Wikipedia

    en.wikipedia.org/wiki/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 a power-assisted one.

  6. Motorcycle engine - Wikipedia

    en.wikipedia.org/wiki/Motorcycle_engine

    A Honda Super Cub engine. The most popular motorcycle in history, with over 100 million produced. A motorcycle engine is an engine that powers a motorcycle.Motorcycle engines are typically two-stroke or four-stroke internal combustion engines, but other engine types, such as Wankels and electric motors, have been used.

  7. Yamaha Genesis engine - Wikipedia

    en.wikipedia.org/wiki/Yamaha_Genesis_engine

    What could be argued is that the Genesis concept (not just the inclination of the engine, although on the FZ750 was a radical 45 degrees, on the FZR1000 a less radical 35 degrees, a feature now generally universally used in the modern (post 1990) sport bike thus allowing downdraft air induction and airbox pressurization, but also the use of ...

  8. Suzuki GSV-R - Wikipedia

    en.wikipedia.org/wiki/Suzuki_GSV-R

    The GSV-R replaced Suzuki's 500 cc two-stroke V4 RGV500 which was ridden by Kenny Roberts Jr. to win the 500cc World Championship in 2000. The first-generation GSV-R, the XRE0, was introduced in 2002 (Suzuki originally planned to wait until the following year), with regulations for that season designed for 990cc four-stroke engines in mind.

  9. Yamaha YZ450F - Wikipedia

    en.wikipedia.org/wiki/Yamaha_YZ450F

    The bike had an 11,600 rpm redline [8] [better source needed] power and torque close to its 250 cc two-stroke rivals. [1] It benefited from engine compression braking, which allowed the engine to slow the bike down during deceleration, giving the brakes a rest. [1] The 1998 YZ400F was the first bike to come stock with a Keihin FCR carburetor.