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  2. Halfords - Wikipedia

    en.wikipedia.org/wiki/Halfords

    Halfords remained in the BTCC until the end of the 2022 season, before parting ways with Team Dynamics ahead of the 2023 BTCC. [24] In January 2008, Halfords started sponsoring a mixed professional bike team, Team Halfords Bikehut, headed by Nicole Cooke. [25] Halfords announces a 15 month partnership to sponsor ITV National Weather from ...

  3. Dustcap - Wikipedia

    en.wikipedia.org/wiki/Dustcap

    A dustcap is a small cover used on the valve stem of a bicycle or car tire to prevent dust or other small particles from entering the valve and damaging it. Dustcaps are usually made from plastic but may occasionally be made of metal. The dustcap is internally threaded and is secured by screwing it onto the end of the stem.

  4. National Tyres and Autocare - Wikipedia

    en.wikipedia.org/wiki/National_Tyres_and_Autocare

    National Tyres and Autocare is a tyre and automotive parts retailer based in Stockport in Greater Manchester, England and owned by Halfords. They are commonly referred to as just 'National Tyres' [ 1 ] although the limited company is still National Tyre Service Ltd (trading as National Tyres and Autocare).

  5. Valve stem - Wikipedia

    en.wikipedia.org/wiki/Valve_stem

    An inflator stem is not used; instead, a removable cap on a valve stem embedded in the tire rim is fitted, with only the cap visible. When inflating the tire, the cap is first removed, typically with a coin, and then a "portable" dedicated inflator stem is screwed onto the valve stem. Through the inflator, the tire is inflated as usual.

  6. Presta valve - Wikipedia

    en.wikipedia.org/wiki/Presta_valve

    The Presta valve (also French valve (FV) or Sclaverand valve) is a type of tire valve commonly found on high pressure bicycle inner tubes and is commonly used on tubeless setups. It consists of an outer valve stem and an inner valve body. A lock nut to secure the stem at the wheel rim and a valve cap may also be present.

  7. Valve float - Wikipedia

    en.wikipedia.org/wiki/Valve_float

    Stiffer valve springs can help prevent valve float and valve bounce but at the expense of increased friction losses, higher stresses, and more rapid wear in the valvetrain. Various techniques have been used to offset the effect of stiffer springs, such as dual-spring and progressive-sprung valves, roller-tipped tappets, and pneumatic valve ...

  8. Halfords Autocentre - Wikipedia

    en.wikipedia.org/wiki/Halfords_Autocentre

    Halfords Autocentre in Newport, Isle of Wight in March 2012. Nationwide Autocentre was founded in January 2001, as a former subsidiary of Lex Autocentres, owned by Lex Service plc when it was under the leadership of Andy Harrison. Since 1999, these were part of the RAC's motoring division, when it was bought by Lex.

  9. Core plug - Wikipedia

    en.wikipedia.org/wiki/Core_plug

    Core plugs are usually thin metal cups press fitted into the casting holes, but may be made of rubber or other materials. The most common metal plugs used in automotive engines are made from plated mild steels, stainless steels, brass or bronze.