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  2. Triathlon equipment - Wikipedia

    en.wikipedia.org/wiki/Triathlon_equipment

    Tri bikes are generally very similar to time trial bicycles used in time trial races. In 1989, Empfield designed the Quintana Roo Superform, a triathlon specific bicycle "built from the aerobars back" which provided an aerodynamic advantage as well as more power when in the "aero" position. Empfield's bike had 650c wheels and an 80 degree seat ...

  3. Kestrel USA - Wikipedia

    en.wikipedia.org/wiki/Kestrel_USA

    1988: The company unveils the "Nitro" full-suspension mountain bike after collaboration with Keith Bontrager; 1989: World's first carbon fork, the EMS; 1989: Kestrel is the first company to use higher stiffness, "intermediate modulus" carbon fiber in the 200 EMS. 1989: World's first all-carbon triathlon bike, the KM40

  4. Triathlon - Wikipedia

    en.wikipedia.org/wiki/Triathlon

    Triathlon bikes use a specialized geometry, including a steep seat-tube angle both to improve aerodynamics and to spare muscle groups needed for running. At the end of the bike segment, triathletes also often cycle with a higher cadence (revolutions per minute), which serves in part to keep the muscles loose and flexible for running.

  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. Cycling - Wikipedia

    en.wikipedia.org/wiki/Cycling

    European city bike Children riding a bike in Ghana. Cycling, [1] also known as bicycling [2] or biking, [3] is the activity of riding a bicycle or other types of pedal-driven human-powered vehicles such as balance bikes, unicycles, tricycles, and quadricycles.

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