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  2. Bicycle and motorcycle geometry - Wikipedia

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

    The fork offset is the perpendicular distance from the steering axis to the center of the front wheel. In bicycles, fork offset is also called fork rake. Road racing bicycle forks have an offset of 40–50 mm (1.6–2.0 in). [7]

  3. Bicycle and motorcycle dynamics - Wikipedia

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

    For example, LeMond Racing Cycles offers [44] both with forks that have 45 mm of offset or rake and the same size wheels: a 2006 Tete de Course, designed for road racing, with a head angle that varies from 71 + 1 ⁄ 4 ° to 74°, depending on frame size, and thus trail that varies from 51.5 mm to 69 mm.

  4. Bicycle fork - Wikipedia

    en.wikipedia.org/wiki/Bicycle_fork

    Road racing bicycle forks have an offset of 40–55 mm. [2] For touring bicycles and other designs, the frame's head angle and wheel size must be taken into account when determining offset, and there is a narrow range of acceptable offsets to give good handling characteristics. The general rule is that a slacker head angle requires a fork with ...

  5. Jones Counter - Wikipedia

    en.wikipedia.org/wiki/Jones_Counter

    Jones Counter on the front wheel of a bicycle. To measure road-race courses, the counter is fitted to a bicycle between the left fork leg and the front wheel. [5] The tab or tabs on the large ring gear engage with the spokes, thus providing drive to a Veeder-Root counter.

  6. Bicycle performance - Wikipedia

    en.wikipedia.org/wiki/Bicycle_performance

    Reducing the weight of the bike + rider by 1 kg would increase speed by 0.01 m/s at 9 m/s on the flat (5 seconds in a 32 km/h (20 mph), 40-kilometre (25 mile) time trial). The same reduction on a 7% grade would be worth 0.04 m/s (90 kg bike + rider) to 0.07 m/s (65 kg bike + rider).

  7. Road bicycle racing - Wikipedia

    en.wikipedia.org/wiki/Road_bicycle_racing

    Road racing is the most popular professional form of bicycle racing, in terms of numbers of competitors, events and spectators. The two most common competition formats are mass start events, where riders start simultaneously (though sometimes with a handicap ) and race to a set finish point; and time trials , where individual riders or teams ...

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    mail.aol.com

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  9. Gear inches - Wikipedia

    en.wikipedia.org/wiki/Gear_inches

    As result, a 28-inch wheel could be made to move a bicycle at the same speed as a 60-inch wheel. Such a bicycle was then said to be geared at 60 gear inches and pedalled similar to an ordinary with a 60-inch wheel. Thus on a bicycle geared at 72 gear inches one revolution of the pedals advances the bicycle the distance that a 72-inch wheel ...