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  2. Jockey wheel - Wikipedia

    en.wikipedia.org/wiki/Jockey_wheel

    A jockey wheel is a wheel-based mechanical system used for steering or guidance, either: a guide wheel — usually operating as a pair — which is used to move, retain, locate and (usually) add tension to a chain , rope or cable which is then fed into the groove of another wheel, toothed wheel, cog or sprocket ;

  3. Motorcycle helmet - Wikipedia

    en.wikipedia.org/wiki/Motorcycle_helmet

    A collection of full-face motorcycle helmets worn by Moto GP racer Valentino Rossi. A motorcycle helmet is a type of helmet used by motorcycle riders. Motorcycle helmets contribute to motorcycle safety by protecting the rider's head in the event of an impact. They reduce the risk of head injury by 69% and the risk of death by 42%.

  4. Motorcycle wheel - Wikipedia

    en.wikipedia.org/wiki/Motorcycle_wheel

    The Steffey motorcycle in 1902, essentially a bicycle with a two-stroke engine attached, used wooden, rims with wire spokes. [1] This style of wheel evolved into a stouter motorcycle-specific wheel, still with spokes, up to the 1960s and beyond. [2]: 134 In April, 1922, Borrani started production of motorcycle wheels with an aluminium rim. [3]

  5. Bike-sharing startup Wheels offers discounts if riders use ...

    www.aol.com/news/2019-12-10-wheels-shared-bikes...

    To tackle this issue, bike share company Wheels is introducing helmets to go with its bicycles. Skip to main content. Sign in. Mail. 24/7 Help. For premium support please call: 800-290-4726 more ...

  6. Motorcycle components - Wikipedia

    en.wikipedia.org/wiki/Motorcycle_components

    A motorcycle fork is the portion of a motorcycle that holds the front wheel and allows one to steer. For handling, the front fork is the most critical part of a motorcycle. The combination of rake and trail determines how stable the motorcycle is. The 'fork' on a motorcycle consists of multiple components.

  7. Comstar wheel - Wikipedia

    en.wikipedia.org/wiki/Comstar_wheel

    The Comstar wheel (Properly ComStar - a portmanteau of Composite Star shaped wheel), sometimes referred to as Com-stars and stylised as ComStar, [1] [2] was a composite motorcycle wheel that Honda fitted to many of its motorcycles from 1977 [3] [4] to the mid 1980s.

  8. Motorcycle tyre - Wikipedia

    en.wikipedia.org/wiki/Motorcycle_tyre

    A motorcycle tyre (spelt tire in American English) is the outer part of motorcycle wheel, attached to the rim, providing traction, resisting wear, absorbing surface irregularities, and allowing the motorcycle to turn via countersteering.

  9. Bicycle and motorcycle geometry - Wikipedia

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

    Wheel flop refers to steering behavior in which a bicycle or motorcycle tends to turn more than expected due to the front wheel "flopping" over when the handlebars are rotated. Wheel flop is caused by the lowering of the front end of a bicycle or motorcycle as the handlebars are rotated away from the "straight ahead" position.