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  2. Motorcycle testing and measurement - Wikipedia

    en.wikipedia.org/wiki/Motorcycle_testing_and...

    Motorcycle testing and measurement includes a range of more than two dozen statistics giving the specifications of the motorcycle, and the actual performance, expressed by such things as the output of the engine, and the top speed or acceleration of the motorcycle. Most parameters are uncontroversial and claims made by manufacturers are ...

  3. Motorcycle personal protective equipment - Wikipedia

    en.wikipedia.org/wiki/Motorcycle_personal...

    A motorcyclist wearing helmet, gloves, boots and leathers slides along a racetrack after crashing Some riders neglect safety with other priorities in choosing what equipment to wear. To improve motorcycle safety, many countries mandate the wearing of personal protective equipment such as protective clothing and helmets.

  4. Gear inches - Wikipedia

    en.wikipedia.org/wiki/Gear_inches

    Simplified diagram of gear inches: As the rear sprocket is halfed in size, the distance traveled by the rear wheel doubles, at half the torque. Gear inches is an imperial measure corresponding to the diameter in inches of the drive wheel of a penny-farthing bicycle with equivalent (direct-drive) gearing.

  5. Motorcycle helmet - Wikipedia

    en.wikipedia.org/wiki/Motorcycle_helmet

    A collection of 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%.

  6. Cycle Gear - Wikipedia

    en.wikipedia.org/wiki/Cycle_Gear

    Cycle Gear is a motorcycle accessories retailer featuring 165 stores in 39 states and an e-commerce website. The company is headquartered in Benicia, California. The business was founded in 1974 by Dave Bertram. The company founded the BILT and Sedici helmet brands in 2011.

  7. Bell Sports - Wikipedia

    en.wikipedia.org/wiki/Bell_Sports

    The "Bell Helmet Company" was established as a division of Bell Auto Parts in 1956. [2] Bell introduced its Star model, the first full-face motorcycle helmet on the market, in 1968. [4] In 1971, Bell produced the first full-face off-road motorcycle helmet. [5] Bell made its first production helmet in 1954.

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