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  2. Cold inflation pressure - Wikipedia

    en.wikipedia.org/wiki/Cold_inflation_pressure

    Cold inflation pressure is a gauge pressure and not an absolute pressure. This article focuses on cold inflation pressures for passenger vehicles and trucks. The general principles are, of course, applicable to bicycle tires, tractor tires, and any other kind of tire with an internal structure that gives it a defined size and shape (as opposed ...

  3. Tubeless tire - Wikipedia

    en.wikipedia.org/wiki/Tubeless_tire

    A tubeless tire (also spelled as tubeless tyre in Commonwealth English) is a pneumatic tire that does not require a separate inner tube.. Unlike pneumatic tires which use a separate inner tube, tubeless tires have continuous ribs molded integrally into the bead of the tire that are forced by air pressure into a flange on the metal rim of the wheel, sealing the tire to the rim.

  4. Bicycle tire - Wikipedia

    en.wikipedia.org/wiki/Bicycle_tire

    If a tire is inflated to 4 bar (400 kPa; 58 psi) at sea level, the absolute internal pressure would be 5 bar (500 kPa; 73 psi) (+25%), and this is the pressure that the tire would need to contain if it were moved to a location with no atmospheric pressure, such as the vacuum of free space. At the highest elevation of commercial air travel ...

  5. Schwalbe Tires - Wikipedia

    en.wikipedia.org/wiki/Schwalbe_Tires

    Schwalbe Lugano 700×25 for a road bicycle Schwalbe tubes. Schwalbe Tires is a brand name of Ralf Bohle GmbH, [1] a German manufacturer [2] of pneumatic tires for bicycles [3] and wheelchairs. Schwalbe produces a wide range of tires for different cycling applications, but is best known for its commuting, touring and utility tires such as the ...

  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. Inner tube - Wikipedia

    en.wikipedia.org/wiki/Inner_tube

    Bead tires, whether with an inner tube or tubeless, cannot be ridden flat, as the tire may separate from the rim. In contrast, tubular tires have the tubing sewn to the tire, allowing them to be ridden flat if punctured. [3] Tubeless tires are reported to be more comfortable if properly installed. [1] [2] [3]

  8. Tire code - Wikipedia

    en.wikipedia.org/wiki/Tire_code

    Prior to 1964, tires were all made to a 90% aspect ratio. Tire size was specified as the tire width in inches and the diameter in inches – for example, 6.50-15. [24] From 1965 to the early 1970s, tires were made to an 80% aspect ratio. Tire size was again specified by width in inches and diameter in inches.

  9. Bicycle pump - Wikipedia

    en.wikipedia.org/wiki/Bicycle_pump

    The maximum pressure, or how much air the pump can force into a tire, is an important consideration. The pump needs to match or exceed the stated air pressure the tires can handle. If the maximum air pressure is too low, it will not be able to adequately inflate the tires, no matter how hard it is used.