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Cheaper gravel wheels usually have aluminium rims; carbon fibre is used for more expensive wheel sets. Aerodynamic shaping is used on some wheelsets to reduce drag, as on road bikes. [citation needed] The main distinguishing features from tubeless road bike wheels are slightly more robust construction, and wider rim widths. [citation needed]
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.
The tubular tyre and rim combination has the potential to either be slightly lighter or stronger than more common clincher tyres. [5] 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.
Wire wheels, wire-spoked wheels, tension-spoked wheels, or "suspension" wheels are wheels whose rims connect to their hubs by wire spokes. [ 1 ] [ 2 ] [ 3 ] Although these wires are considerably stiffer than a similar diameter wire rope , they function mechanically the same as tensioned flexible wires, keeping the rim true while supporting ...
Its hubless wheels are made from former truck tires, and a chain-driven friction drum provides power and brake force. [ 6 ] Designed "for casual cruising and slow ride-bys at shows", it consists of a 996 cc (60.8 cu in) fuel-injected Suzuki 4-stroke engine [ 7 ] in a steel frame covered by a fiberglass body with electroluminescent wire lighting.
BMW patented a spoked wheel that cross ran the spokes onto the outside of the rim, allowing the use of tubeless tires. [5]: 31 By the late 2000s, a number of materials and designs in addition to traditional spoked wheels were available, including cast, spun or forged aluminum; cast or forged magnesium; and single-layup or composite carbon fiber.
The first radial tire designs were patented in 1914 by G. H. Hamilton and T. Sloper -patent № 467 filed in London, [3] and in 1916 by Arthur W. Savage, a tire manufacturer (1915–1919), firearm designer and inventor in San Diego, CA - U.S. patent 1,203,910.
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