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  • Dirtsurfing

    serch.it?q=Dirtsurfing

    Dirtsurfer with the main parts labelled.Dirtsurfing is the sport of riding a Dirtsurfer brand inline board. This new Australian boardsport is correctly known as inline boarding because Dirtsurfer is a trademark protected brand name. A Dirtsurfer is composed of an aircraft aluminium tube frame, a laminate or composite deck and two 20in or 16in diameter BMX style bicycle wheels. Footstraps are (optionally) attached to the deck to give more control to the rider. The board is unique in that it incorporates a patented steering geometry where the front wheel pivots from a point in front of and below the axle of the wheel, via the 'Swingarm'. The rider's weight automatically centres and straightens the front wheel, creating stability and control. Another feature of the Dirtsurfer which is not found on other four-wheeled boards is that, much like a bicycle, the stability actually increases with speed. Inline Boarding was made an official race class by the International Gravity Sports Association (IGSA) and Gravity Sports International (GSI) in 2005. The 2005 IGSA World Cup Champion inline boarder is Nihat Uysal of Germany. Nihat rides the Silver GP-X (see below)

  • Bicycle tire

    serch.it?q=Bicycle-tire

    A clincher bicycle tire mounted on a wheel A cross section of a clincher tire with a puncture‑preventing layer (in blue) between the casing and the tread An inner tube rolled up for storage or to be carried as a spare A bicycle tire is a tire that fits on the wheel of a bicycle or similar vehicle. They may also be used on wheelchairs and handcycles, especially for racing. Bicycle tires provide an important source of suspension, generate the lateral forces necessary for balancing and turning, and generate the longitudinal forces necessary for propulsion and braking. Although the use of a pneumatic tire greatly reduces rolling resistance compared to the use of a rigid wheel or solid tire, the tires are still typically the second largest source, after air drag, of power consumption on a level road. The modern detachable pneumatic bicycle tire contributed to the popularity and eventual dominance of the safety bicycle. Bicycle tires are also used on unicycles, tricycles, quadracycles, bicycle trailers, and trailer bikes.

  • Loose wheel nut indicator

    serch.it?q=Loose-wheel-nut-indicator

    Wheel nut indicators on a bus showing all nuts are as they were left.Loose wheel nut indicators are small pointed tags, usually made of fluorescent orange or yellow plastic, which are fixed to the lug nuts of the wheels of large vehicles. The tag rotates with the nut, and if the nut becomes loose, the point of the tag shifts noticeably out of alignment with the other tags. If too many lug nuts are loosened, the wheel can detach from the wheel stud; loose wheel nut indicators allow identification of loose nuts before this can occur. A single wheel nut indicator. Loose wheel nut indicators or Lug nut indicators are used both by auto mechanics and drivers to identify lug nuts which require tightening, as well as by accident investigators to detect faults after accidents. Although not compulsory in most jurisdictions, road safety bodies recommend their use, especially on large or heavy vehicles such as buses, coaches, large vans, and trucks.

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