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  2. Rickman Motorcycles - Wikipedia

    en.wikipedia.org/wiki/Rickman_Motorcycles

    Later, in 1966, road bikes were produced as well. The first street legal bike used a Triumph Bonneville engine. Rickman initially supplied frame kits to the public, as no major British motorcycle manufacturers would sell engines separately. The frame kits were built for many engines, including Triumph twins, BSA singles and Matchless. [1]

  3. Racing fuel - Wikipedia

    en.wikipedia.org/wiki/Racing_fuel

    Nitromethane and methanol fuel, used by Top Fuel drag racing; Methanol fuel, formerly used in some open-wheel race cars, like IndyCar Series prior to 2007 and in Top Alcohol drag racing; Ethanol fuel, now being used in the IndyCar Series and NASCAR; Nitrous, used by drag racing vehicles to increase horsepower

  4. Motorcycle racing - Wikipedia

    en.wikipedia.org/wiki/Motorcycle_racing

    Supermoto is a racing category that is a crossover between road-racing and motocross. The motorcycles are mainly motocross types with road-racing tyres. The racetrack is a mixture of road and dirt courses (in different proportions) and can take place either on closed circuits or in temporary venues (such as urban locations).

  5. Motorcycle - Wikipedia

    en.wikipedia.org/wiki/Motorcycle

    A motorcycle (motorbike, bike, or, if three-wheeled, a trike) is a two or three-wheeled motor vehicle steered by a handlebar from a saddle-style seat. [1] [2] [3] Motorcycle designs vary greatly to suit a range of different purposes: long-distance travel, commuting, cruising, sport (including racing), and off-road riding.

  6. Enduro motorcycle - Wikipedia

    en.wikipedia.org/wiki/Enduro_motorcycle

    MX racing bikes have often been used as platforms for building enduro bikes. [1] This was partially driven by the conversion of MX from 2-stroke to 4-stroke engine designs to comply with regulatory trends, as well as the development of hybrid competition races such as Enduro-X. [1] Compared to MX bikes, enduro and dual-sport bikes traditionally had a much higher proportion of 4-stroke motors.

  7. American Historic Racing Motorcycle Association - Wikipedia

    en.wikipedia.org/wiki/American_Historic_Racing...

    The seeds of today's AHRMA were sown in the late 1970s and early 1980s as different groups and individuals began to organize vintage racing on a regional basis. Road racing was the first type of competition to appear, spearheaded in the Northeast by Robert Iannucci and Jeffrey Elghanayan. In the Southeast, Bob and Marrie Barker and Will Harding ...

  8. Yamaha PW50 - Wikipedia

    en.wikipedia.org/wiki/Yamaha_PW50

    Fuel capacity 0.5 US gal (1.9 L) The Yamaha PW50 is a commercially available two-stroke 50 cc (3.1 cu in) mini dirt bike , designed, developed and produced by Japanese manufacturer Yamaha since 1980.

  9. Harley-Davidson XR-750 - Wikipedia

    en.wikipedia.org/wiki/Harley-Davidson_XR-750

    An XR-750, number 16, through the dust at Scioto Downs, Ohio. The Harley-Davidson XR-750 is a racing motorcycle made by Harley-Davidson since 1970, primarily for dirt track racing, but also for road racing in the XRTT variant.