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ISO 5775. ISO 5775 is an international standard for labeling the size of bicycle tires and rims. The system used was originally developed by the European Tyre and Rim Technical Organisation (ETRTO). It is designed to make tire sizing consistent and clear. It replaces overlapping informal systems that ambiguously distinguished between sizes.
A tubed, clincher tire showing the inner tube protruding between the tire and the rim. Tubular tire rolled from rim to show glue between them. Clincher cross section schematic with 1: rim, 2: rim strip, 3: rim braking surface, 4: bead core, 5: inner tube, 6: casing, 7: tread. The first bicycle "tires" were iron bands on the wooden wheels of ...
For bicycles with 700c wheels, some cyclists quote gear inches based on a nominal wheel diameter of 27 inches, corresponding to the old British tire size of 27 x 1 + 1 ⁄ 4" (ETRTO 630). Strictly speaking, the rolling diameter of a 700c wheel may be significantly higher or lower than 27", depending on the tire size, e.g. nearly 27.5" for a ...
A tubular tyre, referred to as a tub in Britain, [1] a sew-up in the US, a single in Australia [citation needed], or just a tubular is a bicycle tyre that is stitched closed around the inner tube to form a torus. The combination is then glued (sometimes with two-sided tape) onto a specially designed rim, referred to as a "sprint rim" in Britain ...
Low rolling resistance tire. Low rolling resistance tires are designed to reduce the energy loss as a tire rolls, decreasing the required rolling effort — and in the case of automotive applications, improving vehicle fuel efficiency as approximately 5–15% of the fuel consumed by a typical gas car may be used to overcome rolling resistance. [1]
Inner tube. Two bicycle inner tubes: A larger mountain bike inner tube and a slimmer race bike tube. An inner tube is an inflatable torus that forms the interior of some pneumatic tires. [ 1] The tube is inflated with a valve stem, and fits inside of the casing of the tire. The inflated inner tube provides structural support and suspension ...
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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 ...