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  2. Bicycle and motorcycle geometry - Wikipedia

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

    Road racing bicycle forks have an offset of 40–50 mm (1.6–2.0 in). [7] The offset may be implemented by curving the forks, adding a perpendicular tab at their lower ends, offsetting the fork blade sockets of the fork crown ahead of the steerer, or by mounting the forks into the crown at an angle to the steer tube.

  3. Bicycle and motorcycle dynamics - Wikipedia

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

    Bike steering axis angle, fork offset, and trail. A factor that influences how easy or difficult a bike will be to ride is trail, the distance by which the front wheel ground contact point trails behind the steering axis ground contact point. The steering axis is the axis about which the entire steering mechanism (fork, handlebars, front wheel ...

  4. Caster angle - Wikipedia

    en.wikipedia.org/wiki/Caster_angle

    Front suspension of a race car ‍ — the caster angle is formed by the line between upper and lower ball joint An example of a chopper with a raked fork at an extreme caster angle The caster angle [ 1 ] or castor angle [ 2 ] is the angular displacement of the steering axis from the vertical axis of a steered wheel in a car , motorcycle ...

  5. Scrub radius - Wikipedia

    en.wikipedia.org/wiki/Scrub_radius

    Scrub radius is changed whenever there is a change in wheel offset. For example, when the wheels are pushed out from the body of the car the scrub radius becomes more positive. Older cars tended to have very close to zero scrub radius but often on the positive side, while newer cars with ABS tend to have a negative scrub radius (this is why ...

  6. Counterweight - Wikipedia

    en.wikipedia.org/wiki/Counterweight

    A simple crane. A counterweight is a weight that, by applying an opposite force, provides balance and stability of a mechanical system. [1] The purpose of a counterweight is to make lifting the load faster and more efficient, which saves energy and causes less wear and tear on the lifting machine.

  7. Four-bar linkage - Wikipedia

    en.wikipedia.org/wiki/Four-bar_linkage

    This is so the majority of time in each cycle is allotted for the work-intensive stroke. These quick-return mechanisms are often referred to as offset. [6] Examples of offset mechanisms include: Cutting machines; Package-moving devices; With offset mechanisms, it is very important to understand how and to what degree the offset affects the time ...

  8. Missing photographer Hannah Kobayashi possibly caught up in ...

    www.aol.com/missing-photographer-hannah...

    Missing photographer Hannah Kobayashi may have been intertwined in an alleged marriage scam with an Argentinian national before her disappearance, according to a shocking report.. Kobayashi, 30 ...

  9. Pitching moment - Wikipedia

    en.wikipedia.org/wiki/Pitching_moment

    The aerodynamic center of an airfoil is usually close to 25% of the chord behind the leading edge of the airfoil. When making tests on a model airfoil, such as in a wind-tunnel, if the force sensor is not aligned with the quarter-chord of the airfoil, but offset by a distance x, the pitching moment about the quarter-chord point, / is given by