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  2. Harley-Davidson XR-750 - Wikipedia

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

    The XR-750 was designed in response to a 1969 change in AMA Grand National Championship rules that leveled the playing field for makes other than Harley-Davidson, allowing Japanese and British motorcycles to outperform the previously dominant Harley-Davidson KR race bike. [1]

  3. Rupp Industries - Wikipedia

    en.wikipedia.org/wiki/Rupp_Industries

    The Rat had a red body and came with a 5 HP Tecumseh engine. The Truk-R had silver metal flake body with a pickup style bed. It came with a larger 8 HP Tecumseh engine. (Rat catalog reference) [citation needed] The Rat used some mini bike parts in its construction, including the turbine style 6" front wheel. Original ad introducing the Rupp Centaur

  4. Rat bike - Wikipedia

    en.wikipedia.org/wiki/Rat_bike

    Rat bike engineering: sound joint between sections of exhaust pipe without the use of welding equipment. The concept of keeping a motorcycle in at least minimally operational condition without consideration for appearance has probably characterized motorcycle ownership since its earliest days. [ 2 ]

  5. Zipp 2001 - Wikipedia

    en.wikipedia.org/wiki/Zipp_2001

    Although they have been out of production since 1997, they still have a cult following within triathlon, where they remain race-legal [1] [citation needed]. The Zipp 2001 is part of a significant advance in mid-1990s bicycle design, where new materials such as aluminum and carbon fiber allowed for new, less orthodox frame designs.

  6. Harley-Davidson VRSC - Wikipedia

    en.wikipedia.org/wiki/Harley-Davidson_VRSC

    The VRSC was introduced in 2001 in a single model called the V-Rod aiming to compete against Japanese and American muscle bikes. The V-Rod's Revolution engine was developed for road use by Porsche Engineering with the aid of a few Harley-Davidson engineers [6] [7] [8] from Harley-Davidson's VR1000 V-twin racing bike engine.

  7. Bicycle and motorcycle geometry - Wikipedia

    en.wikipedia.org/wiki/Bicycle_and_motorcycle...

    a 2006 Tete de Course, designed for road racing, with a head angle that varies from 71.25° to 74°, depending on frame size. Due to front fork suspension, modern mountain bikes—as opposed to road bikes—tend to have slacker head tube angles, generally around 70°, although they can be as low as 62° (depending on frame geometry setting). [3]

  8. Honda VFR750R - Wikipedia

    en.wikipedia.org/wiki/Honda_VFR750R

    Joey Dunlop coming down Bray Hill, Isle of Man in the 1992 Senior TT race, on his Honda RC30. While being inspired by the Honda RVF endurance racer (not to be confused with the Honda RVF750 RC45) the VFR750R instead had its engine based on the 1986-7 VFR750F (RC24). The engines are almost identical externally, the only visible differences being ...

  9. Reynolds 531 - Wikipedia

    en.wikipedia.org/wiki/Reynolds_531

    Reynolds 531 (pronounced 'five-three-one') is a brand name, registered to Reynolds Technology of Birmingham in the United Kingdom, for a manganese–molybdenum, medium-carbon steel tubing that was used in many quality applications, including race car chassis, aircraft components and, most famously, bicycle frame tubing.