|
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. History Many patents had been filed covering tubeless tires. ''Killen Tire'' applied for a patent in 1928 and was granted in the UK in 1930. The Wingfoot Corporation, a subsidiary of Goodyear Tire were granted a patent in South Africa in 1944. Due to technical problems, most of these designs saw only limited production or were abandoned. Frank Herzegh working for BF Goodrich applied for a patent in 1946 and eventually received in 1952 in the United States. By 1955 tubeless tires became standard equipment on new cars. BF Goodrich had to defend their patent in court several times, due to the similarit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
American And British English Spelling Differences
Despite the various list of dialects of English, English dialects spoken from country to country and within different regions of the same country, there are only slight regional variations in English orthography, the two most notable variations being British and American spelling. Many of Comparison of American and British English, the differences between American English, American and British English, British or English in the Commonwealth of Nations, Commonwealth English date back to a time before spelling standards were developed. For instance, some spellings seen as "American" today were once commonly used in Britain, and some spellings seen as "British" were once commonly used in the United States. A "British standard" began to emerge following the 1755 publication of Samuel Johnson's ''A Dictionary of the English Language'', and an "American standard" started following the work of Noah Webster and, in particular, his ''Webster's Dictionary, An American Dictionary of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Valve Stem
A valve stem is a self-contained valve that opens to admit gas to a chamber (such as air to inflate a tire), and is then automatically closed and kept sealed by the pressure in the chamber, or a spring (device), spring, or both, to prevent the gas from escaping. There are many types of valves, and they are most commonly used on Tire, automobile, Motorcycle tire, motorcycle, and bicycle tires, but also for many other applications. The most common type is the Schrader valve, but some road bicycles with skinny tires instead use the Presta valve. Schrader Schrader valves consist of a valve stem into which a poppet valve is threaded with a spring attached. They are used on virtually all automobile and motorbike tires and on wider-rimmed bicycle tires. In addition to tires, Schrader valves of varying diameters are used in refrigeration and Air conditioning, air conditioning systems, plumbing, Fuel injection, engine fuel injection, Car suspension, suspension systems, and SCUBA Divin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pascal (unit)
The pascal (symbol: Pa) is the unit of pressure in the International System of Units (SI). It is also used to quantify internal pressure, stress, Young's modulus, and ultimate tensile strength. The unit, named after Blaise Pascal, is an SI coherent derived unit defined as one newton per square metre (N/m2). It is also equivalent to 10 barye (10 Ba) in the CGS system. Common multiple units of the pascal are the hectopascal (1 hPa = 100 Pa), which is equal to one millibar, and the kilopascal (1 kPa = 1000 Pa), which is equal to one centibar. The unit of measurement called '' standard atmosphere (atm)'' is defined as . Meteorological observations typically report atmospheric pressure in hectopascals per the recommendation of the World Meteorological Organization, thus a standard atmosphere (atm) or typical sea-level air pressure is about 1013 hPa. Reports in the United States typically use inches of mercury or millibars (hectopascals). In Cana ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bar (unit)
The bar is a metric unit of pressure defined as 100,000 Pa (100 kPa), though not part of the International System of Units (SI). A pressure of 1 bar is slightly less than the current average atmospheric pressure on Earth at sea level (approximately 1.013 bar). By the barometric formula, 1 bar is roughly the atmospheric pressure on Earth at an altitude of 111 metres at 15 °C. The bar and the millibar were introduced by the Norwegian meteorologist Vilhelm Bjerknes, who was a founder of the modern practice of weather forecasting, with the bar defined as one megadyne per square centimetre. The SI brochure, despite previously mentioning the bar, now omits any mention of it.. The bar has been legally recognised in countries of the European Union since 2004. British Standard BS 350:2004 ''Conversion Factors for Units''. The US National Institute of Standards and Technology (NIST) deprecates its use except for "limited use in meteorology" and lists ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bicycle Tire
A bicycle tire is a tire that fits on the Bicycle wheel, wheel of a bicycle or similar vehicle. These tires may also be used on tricycles, wheelchairs, and handcycles, frequently for Wheelchair racing, racing. Bicycle tires provide an important source of Bicycle suspension, suspension, generate the lateral forces necessary for Bicycle and motorcycle dynamics#Balance, balancing and Bicycle and motorcycle dynamics#Turning, turning, and generate the longitudinal forces necessary for Vehicle propulsion, propulsion and Bicycle brake systems, braking. Although the use of a pneumatic tire greatly reduces rolling resistance compared to the use of a rigid wheel or solid tire, the tires are still typically the second largest source, after Drag (physics), wind resistance (air drag), of power consumption on a level road. The modern detachable pneumatic bicycle tire contributed to the popularity and eventual dominance of the safety bicycle. Bicycle tires are also used on unicycles, tricyc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dunlop Valve
The Dunlop valve, (abbreviated as DV; also called a Woods valve, an English valve or a Blitz valve) is a type of pneumatic valve stem in use—mostly on inner tubes of bicycles—in many countries, including Japan, Korea, India, Pakistan, Sri Lanka, most European countries, and a number of developing countries. The Dunlop valve has a wider base than a Presta valve, similar enough in size to a Schrader valve to use identically drilled valve holes in rims, but it can be inflated with a Presta valve adapter. The inner mechanism of the valve can be replaced easily, without the need for special tools. The Dunlop valve originally used a tight rubber sleeve (see illustration of "original plug") which had to be forced open by air pressure while pumping (not only were these difficult to inflate, but the rubber would perish over time, allowing leakage and eventually, complete failure), but modern Dunlop valves use a different plug (core) using either an internal ball bearing or a spring- ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shimano
, originally and later , is a Japanese multinational corporation, multinational manufacturing company for cycling components, fishing tackle and rowing (sport), rowing equipment, which also produced golf supplies until 2005 and snowboarding gear until 2008. Named after founder Shozaburo Shimano (, 1894–1958) and headquartered in Sakai, Osaka, Sakai, Osaka Prefecture, the company has 32 consolidated and 11 unconsolidated subsidiaries, with the primary manufacturing plants based in Kunshan (China), Malaysia and Singapore. In 2017, Shimano had net sales of US dollar, US $3.2 billion, 38% in Europe, 35% in Asia, and 11% in North America. Bicycle components represented 80%, fishing tackle 19%, and other products 0.1%. The company is publicly traded, with 93 million shares of common stock outstanding. They are also the official neutral support for most of the UCI World Tour. Cycling Shimano sales constitute an estimated 85% of the global bicycle component market by value. Its ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wilderness Trail Bikes
Wilderness Trail Bikes (usually shortened to WTB) is a privately owned company based in Marin County, California, USA. It was founded in 1982 as a company that specialized in mountain bike components. Today, WTB sources and sells its product worldwide supplying bike manufacturers and bike shops with components including Bicycle tire, tires, Bicycle saddle, saddles, Bicycle wheel#Rim, rims, Bicycle wheel, wheels, Bicycle_handlebar#Grips, grips, and accessories. History Marin County, California, Marin County is the birthplace of the mountain bike, which had its origins in the late 1970s and early 1980s. Steve Potts, who was already building bike frames in Mill Valley, California, Mill Valley in 1980, teamed up with Mark Slate to help meet demand. Charlie Cunningham, in Fairfax, California, Fairfax, had been building mountain bikes since 1979 with heat-treated aluminum frames which had unique Type II forks, roller-cam brakes, custom-made hubs and other components that were among t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bontrager
Keith Bontrager (; born December 18, 1954) is a motorcycle racer who became a pioneer in the development of the modern mountain bike. Between 1980 and 1995, he was president of his own Bontrager Company, which continues to develop components for Trek Bicycle Corporation after Trek bought out Bontrager. Career Motorcycles Bontrager started in 1965 by building lawnmower engine powered mini-bikes. In 1969, he began racing motocross, funding his racing through motorcycle repair work. Between 1975 and 1981 he designed, built and tuned motocross, road racing and drag racing motorcycles. Motorcycles he tuned won national road racing titles in production and 250 GP classes. Bicycles In 1978, Bontrager became attracted to cycling and in 1979, he built his first road bike. With his motocross background he was attracted to mountain bike cycling. In 1980, he built his first mountain bike frame and founded Bontrager Cycles in Sunnyvale, California. In 1984, he cut 700C (ISO 622) 36-hole ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hutchinson SNC
Hutchinson is a French multinational Group known as the third-largest manufacturer of non-tire rubber in the world. It was founded in 1853 by Hiram Hutchinson in Châlette-sur-Loing, France. The Group manufactured a range of rubber goods, including the Aigle boots. Over the years, Hutchinson has become a player in the automotive, aerospace, defense, and cycling sectors. The organization places a great emphasis on the development of products. Hutchinson is headquartered in Paris with a presence in 25 countries and over 38,000 employees. History Hiram Hutchinson and the founding of the Group Hiram Hutchinson was a North American industrialist with British roots. He came to France in 1853, after acquiring the patent rights for rubber vulcanization from Charles Goodyear ( Goodyear). That same year, he founded Hutchinson, called then "Le Compagnie du Caoutchouc Souple" - The "Soft Rubber Company". Back in the U.S., Hutchinson researched further applications for rubber. The r ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Michelin
Michelin ( , ), in full ("General Company of the Michelin Enterprises P.L.S."), is a French multinational tyre manufacturing company based in Clermont-Ferrand in the Auvergne-Rhône-Alpes '' région'' of France. It is the second largest tyre manufacturer in the world behind Bridgestone and larger than both Goodyear and Continental. In addition to the Michelin brand, it also owns the Kléber tyres company, Uniroyal-Goodrich Tire Company, SASCAR, Bookatable and Camso brands. Michelin is also notable for its Red and Green travel guides, its roadmaps, the Michelin stars that the Red Guide awards to restaurants for their cooking, and for its company mascot Bibendum, colloquially known as the Michelin Man, who is a humanoid consisting of tyres. Michelin's numerous inventions include the removable tyre, the pneurail (a tyre for rubber-tyred metros) and the radial tyre. Michelin manufactures tyres for Space Shuttles, aircraft, automobiles, heavy equipment, motorcycles ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mavic (bicycle Parts Company)
Mavic is a France-based bicycle parts manufacturer, its name is an acronym for Manufacture d'Articles Vélocipédiques Idoux et Chanel. It was founded by Charles Idoux and Lucien Chanel in Lyon, France in the late 1800s. Mavic produced the first aluminium rim in 1934, and the first disc wheel in 1973. Also in 1973, Mavic introduced "neutral" support for all racing teams during cycle races. Mavic has developed many products over the years, including a Tour de France winning groupset, but is today focused on wheels. In 2019, Mavic was sold by Amer Sports to the equity firm Regent, LP. After some ownership turmoil it was sold to Bourrelier Group in 2020. References External links Mavic official homepage ''Bicycling Magazine ''Bicycling'' is a cycling magazine published by Hearst in Easton, Pennsylvania. __TOC__ History ''Bicycling'' started in 1961 as ''Northern California Cycling Association Newsletter'', a four-page mimeographed newsletter (8 ½ x 14) starte ...'', ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
