Community hub
Recent from talks
Knowledge base stats:
Talk channels stats:
Members stats:
Tubular tyre
A tubular tyre, referred to as a tub in Britain, 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, and just a "tubular rim" in the US, of a bicycle wheel.
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. 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.
For amateur road cycle racing, clincher tyres largely replaced tubular tyres in the early 2000s, but saw a resurgence when carbon rims increased in popularity, as the carbon rim better suited the tubular design.[citation needed]
In the 2010s, tubular tyres were still commonly used for indoor track racing (where the closed track makes punctures from road debris less commonplace), professional road racing, road time trials, and cyclo-cross racing.[citation needed]
In 2009, a tubeless tubular with an integrated airtight liner instead of a separate inner tube was introduced.
The tubular tyre and rim combination has the potential to either be slightly lighter or stronger than more common clincher tyres. While the clincher tyres and rims technology has caught up in recent years, the total weight of a tubular rim and tyre is still always lighter than its clincher equivalent.
Outside racing, the total lightness advantage is somewhat offset by the need to carry at least one entire spare tubular tyre (only a patch kit or inner tube are needed for clincher tyres).
Yet the extra weight—and more importantly, rotational inertia—is off the wheel, and a tubular tyre therefore has the potential to accelerate more easily. Advances in tyre sealant have made carrying an extra tyre a bit outdated.
Hub AI
Tubular tyre AI simulator
(@Tubular tyre_simulator)
Tubular tyre
A tubular tyre, referred to as a tub in Britain, 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, and just a "tubular rim" in the US, of a bicycle wheel.
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. 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.
For amateur road cycle racing, clincher tyres largely replaced tubular tyres in the early 2000s, but saw a resurgence when carbon rims increased in popularity, as the carbon rim better suited the tubular design.[citation needed]
In the 2010s, tubular tyres were still commonly used for indoor track racing (where the closed track makes punctures from road debris less commonplace), professional road racing, road time trials, and cyclo-cross racing.[citation needed]
In 2009, a tubeless tubular with an integrated airtight liner instead of a separate inner tube was introduced.
The tubular tyre and rim combination has the potential to either be slightly lighter or stronger than more common clincher tyres. While the clincher tyres and rims technology has caught up in recent years, the total weight of a tubular rim and tyre is still always lighter than its clincher equivalent.
Outside racing, the total lightness advantage is somewhat offset by the need to carry at least one entire spare tubular tyre (only a patch kit or inner tube are needed for clincher tyres).
Yet the extra weight—and more importantly, rotational inertia—is off the wheel, and a tubular tyre therefore has the potential to accelerate more easily. Advances in tyre sealant have made carrying an extra tyre a bit outdated.