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The combination of a tubular tyre and its tubular rim is lighter than that of a clincher tyre and clincher rim, and will therefore always result in less rotating mass or a stronger construction. [5] Tubulars can also be used over a wider range of tyre pressures from 1.7 to 14 bar (25 to 200 psi), compared to the typical 6-9 bar on a clincher tyre.
Various "hook" (also called "crochet") designs re-emerged in the 1970s to seat the tire bead on the wheel rim and hold the tire in place, [10] [11] resulting in the modern clincher design. This allows higher (80–150 psi or 6–10 bar) air pressures than was possible older wired-on tires.
His 1882 patent became the ancestor of all clincher tires, the design found on modern bikes and cars. [7] Modern clincher tires have wires embedded on both beads of the tire so the wires fit inside the edges of the rim to hold the tire in place when it is fully inflated. [7] Diameter (effective)
However, tires not designed for the tubeless application do not have as robust a sidewall as those that are. [11] The drawbacks to tubeless tires are that they are notorious for being harder to mount on the rim than clincher tires, [11] and that the cyclist must still carry a spare tube to insert in case of a flat tire due to a puncture. [11]
Bicycle tire#Clincher To a section : This is a redirect from a topic that does not have its own page to a section of a page on the subject. For redirects to embedded anchors on a page, use {{ R to anchor }} instead .
Clincher tires can be mounted on straight-side or crochet-type rims. Crochet-type rims are not the same as hooked-bead rims. Such tires are designated with their nominal section width and their nominal rim diameter, separated by a hyphen (-). Both are measured in millimeters. A typical example of a tire marking according to ISO 5775-1 is:
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A U-shaped clincher rim must be made of relatively heavier gauge material to prevent the tire pressure from spreading the inherently weak U shape and allowing the tire to come off the rim. Advances in tire technology, however, have seen the far more practical (due to greater ease of changeability) clincher (beaded) tire close the gap. [9]
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