Honda NR500
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Honda NR500
NR500 was a racing motorcycle developed by Honda HRC in 1979 to compete in Grand Prix motorcycle racing. "NR" stands for "New Racing". Model history The motivation behind the NR500 was company founder Soichiro Honda's desire to compete using four-stroke engine technology since the majority of motorcycles manufactured by Honda used four-stroke engines. When the FIM announced new regulations for the 1968 Grand Prix motorcycle racing season that limited the 500 cc engines to four cylinders, this gave an advantage to teams using two-stroke machinery. Honda decided to withdraw from motorcycle racing to concentrate on its automobile division. In November 1977 Honda announced it would be returning to motorcycle Grand Prix racing using four-stroke technology. Even though two-stroke engines dominated motorcycle Grand Prix racing in the late 1970s, Honda felt compelled to race what they sold and thus competed using a high-technology, four-stroke race bike. Since a conventional fou ...
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Honda Racing Corporation
Honda Racing Corporation (HRC) is a division of the Honda, Honda Motor Company formed in 1982. The company combines participation in Motorcycle racing, motorcycle races throughout the world with the development of racing machines. Its racing activities are an important source for the creation of technologies used in the development of Honda motorcycles. HRC activities include sales of production racing motorcycles, support for satellite teams, and rider education programs. History Initially, Honda's racing efforts were run from within the company. In the early 1970s, the Racing Service Center (RSC) was created as a separate company to oversee racing. On September 1, 1982, RSC became HRC, and ran Honda's Motorcycle racing, road racing, endurance, Motorcycle trials, trials and motocross racing programs. Research and development User support HRC has HRC Service Shops at 23 locations in Japan and seven sites overseas. Ownership HRC is a wholly owned subsidiary of Honda Motor Co. ...
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Comstar Wheels
The Comstar wheel, sometimes referred to as Com-stars or stylised as ComStar, was a composite motorcycle wheel that Honda fitted to many of its motorcycles from 1977 to the mid 1980s. Its design allowed it the option of being fitted with tubeless tyres and its use on the Honda CX500 was the first time tubeless tyres had been designed for a production motorcycle. Background The Comstar was Honda's replacement for the tension spoked wheel. Whilst spoked wheels offered a degree of flexibility to help absorb road imperfections, they also required periodic maintenance to ensure correct spoke tension and required the fitment of an inner tube. Honda claimed the Comstar design combined the strength of a cast wheel but allowed a predetermined level of radial flex like spoked wheels. Comstar wheels also allowed the fitment of tubeless tyres which, like other alloy wheels, helped to reduce unsprung mass, although not all models fitted with Comstars had tubeless tyres. Honda debuted Com ...
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Honda Motorcycles
is a Japanese public multinational conglomerate manufacturer of automobiles, motorcycles, and power equipment, headquartered in Minato, Tokyo, Japan. Honda has been the world's largest motorcycle manufacturer since 1959, reaching a production of 400 million by the end of 2019, as well as the world's largest manufacturer of internal combustion engines measured by volume, producing more than 14 million internal combustion engines each year. Honda became the second-largest Japanese automobile manufacturer in 2001. In 2015, Honda was the eighth largest automobile manufacturer in the world. Honda was the first Japanese automobile manufacturer to release a dedicated luxury brand, Acura, in 1986. Aside from their core automobile and motorcycle businesses, Honda also manufactures garden equipment, marine engines, personal watercraft, power generators, and other products. Since 1986, Honda has been involved with artificial intelligence/robotics research and released their ASIMO robo ...
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Suzuka Circuit
The , more famously known as the , is a long motorsport race track located in Ino, Suzuka, Mie, Suzuka City, Mie Prefecture, Japan and operated by Honda Mobilityland, a subsidiary of Honda, Honda Motor Co, Ltd. It has a capacity of 155,000. Introduction Soichiro Honda decided to develop a new permanent circuit in Mie prefecture in the late 1950s. Designed as a Honda test track in 1962 by Dutchman John Hugenholtz, John "Hans" Hugenholtz, the most iconic feature of the track is its "figure eight" layout, with the long back straight passing over the front section by means of an overpass. It is one of only two FIA Grade 1 licensed tracks to have a "figure eight" layout, the other one being the Fiorano Circuit. The circuit has been modified at least eight times: In 1983 a chicane was inserted at the last curve to slow the cars into the pit straight; the original circuit was an incredibly fast track with only one slow corner; without the Casio chicane some cars would go through the ...
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Mazda Raceway Laguna Seca
Laguna Seca Raceway (branded as WeatherTech Raceway Laguna Seca, and previously Mazda Raceway Laguna Seca) is a paved road racing track in central California used for both auto racing and motorcycle racing, built in 1957 near both Salinas and Monterey, California, United States. The racetrack is long, with a elevation change. Its eleven turns are highlighted by the circuit's signature turn, the downhill-plunging "Corkscrew" at Turns 8 and 8A. A variety of racing, exhibition, and entertainment events are held at the raceway, ranging from superkarts to sports car racing to music festivals. Laguna Seca is classified as an FIA Grade Two circuit. The name Laguna Seca is Spanish for ''dry lagoon'': the area where the track now lies was once a lake, and the course was built around the dry lake bed. After the course was reconfigured, two artificial ponds were added. History The earliest development of the local area occurred in 1867 with the founding of the nearby Laguna Seca ...
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1983 Grand Prix Motorcycle Racing Season
The 1983 Grand Prix motorcycle racing season was the 35th F.I.M. Road racing World Championship season. Season summary The 1983 battle for 500 cc supremacy between Honda's Freddie Spencer and Yamaha's Kenny Roberts would be one of the most dramatic seasons since the 1967 duel between Giacomo Agostini and Mike Hailwood. As was the case in 1967, the battle for the 500 cc crown would pit a former world champion riding a powerful but, ill-handling four cylinder motorcycle against a young upstart riding a less powerful but better handling three cylinder motorcycle. Also as in 1967, the title chase wouldn't be decided until the final race of the season. 1983 would be the last year for the 50cc class as it would be upgraded to 80cc for the 1984 season. Stefan Dörflinger would take the honor of being the last 50cc World Champion. Angel Nieto won the 125 cc crown in dominating fashion, making it his 12th world championship. Carlos Lavado would capture his first 250 cc world champions ...
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List Of Grand Prix Motorcycle Racing World Champions
Grand Prix motorcycle racing is the premier championship of motorcycle road racing, which has been divided into three classes since the 1990 season: 125cc, 250cc and MotoGP, with the addition of MotoE, an electric motorcycle class, in 2019. Classes that have been discontinued include 350cc and 50cc/80cc. The Grand Prix Road-Racing World Championship was established in 1949 by the sport's governing body, the Fédération Internationale de Motocyclisme (FIM), and is the oldest motorsport World Championship. There were four classes when the championship started in 1949; 500cc, 350cc, 250cc and 125cc. The 50cc class was introduced in the 1962 season. Due to escalating costs that resulted in a number of manufacturers leaving the championship, the FIM limited the 50cc bikes to a single cylinder, the 125cc and 250cc bikes were limited to two cylinders and the 350cc and 500cc bikes were limited to four cylinders. The 350cc class was discontinued in 1982; two years later the 50cc c ...
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1982 Grand Prix Motorcycle Racing Season
The 1982 Grand Prix motorcycle racing season was the 34th F.I.M. Road Racing World Championship season. Season summary Italian Franco Uncini on the Roberto Gallina backed Suzuki took a well-earned championship for Roberto Gallina's Italian Suzuki team in the 500cc class. Yamaha introduced a new motorcycle with a V4 engine for Kenny Roberts but, suffered from having to develop a new bike during the season. Roberts was also now using Dunlop tires after Goodyear withdrew from motorcycle racing. Honda abandoned its NR500 four-stroke in favor of a V3 two-stroke NS500 piloted by American newcomer, Freddie Spencer, defending champion Marco Lucchinelli and veteran Takazumi Katayama. Spencer would give Honda its first 500cc win since the 1967 season and its first with a two-stroke. Roberts injured a finger and a knee at the British Grand Prix and would miss the remainder of the season. Barry Sheene was lying third in the championship, tied on points with Roberts after eight rounds howev ...
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NS500
The Honda NS500 is a 500cc Grand Prix racing motorcycle of the early 1980s, powered by a two-stroke V3 engine. Created as a replacement for the innovative but unsuccessful four-stroke NR500, the bike went against Honda's preference for four-stroke machines but proved very effective and quickly won the 1983 500cc World Championship with Freddie Spencer on board. Spencer was able to use the lower weight and superior handling of the NS500 to achieve higher cornering speeds, and getting on the power earlier leaving corners. Ron Haslam also won the 1983 Macau Grand Prix. After a relatively short lifespan the bike was replaced by the more successful two-stroke, V4 engine powered NSR500. RS500 customer version In 1983, Honda introduced a production version of the NS500 called the RS500 for privateer racers. These were very similar to the NS500 machines used by the factory racing team but, lacked the special exhaust system. References NS500 The Honda NS500 is a 500cc Grand Prix r ...
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Freddie Spencer
Frederick Burdette Spencer (born December 20, 1961), sometimes known by the nickname Fast Freddie, is an American former world champion motorcycle racer. Spencer is regarded as one of the greatest motorcycle racers of the early 1980s. Motorcycle racing career Early years Spencer was born in Shreveport, Louisiana. He was a racing prodigy who began racing at the age of four, competing in dirt track events near his hometown of Shreveport. After winning the 1978 250cc U.S. National Novice Class Road Racing Championship for first year professionals, Spencer was contracted to ride for the American Honda racing team in the AMA Superbike Championship. He gave Honda their first-ever super bike victory when he won the Road America round of the 1980 AMA Superbike Championship. Spencer gained international prominence at the 1980 U.S. versus Britain Transatlantic Trophy match races when he won two legs at Brands Hatch, defeating World Champions Kenny Roberts and Barry Sheene in the proce ...
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Motor Cycle News
''MCN'' or ''Motor Cycle News'' is a UK weekly Motorcycle, motorcycling newspaper published by Bauer Verlagsgruppe, Bauer Consumer Media, based in Peterborough, United Kingdom. It claims to be "the world’s biggest weekly motorcycle newspaper". The title was founded in late 1955 as ''Motorcycle News'' by Cyril Quantrill, a former employee of Motor Cycling (magazine), Motor Cycling, and was sold to EMAP in 1956. Bauer bought Emap's consumer media division in 2008. The brand has expanded to include the MCN website, MCN Mobile, iPhone app, the 'MCN Compare' Insurance Comparison service, MCN London and Scottish Motorcycle Show and the MCN Live! at Skegness party weekend. In 2009, average weekly circulation was 114,304 copies according to the Audit Bureau of Circulations (UK), Audit Bureau of Circulations, and 2010 it was 106,446 copies. The figure for 2018 was 56,839. Early years Cyril Quantrill was an employee of ''Motor Cycling'' under famous editor Graham Walker (motorcyc ...
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Fire Retardant
A fire retardant is a substance that is used to slow down or stop the spread of fire or reduce its intensity. This is commonly accomplished by chemical reactions that reduce the flammability of fuels or delay their combustion. Fire retardants may also cool the fuel through physical action or endothermic chemical reactions. Fire retardants are available as powder, to be mixed with water, as fire-fighting foams and fire-retardant gels. Fire retardants are also available as coatings or sprays to be applied to an object. Fire retardants are commonly used in fire fighting, where they may be applied aerially or from the ground. Principles of operation In general, fire retardants reduce the flammability of materials by either blocking the fire physically or by initiating a chemical reaction that stops the fire. Physical action There are several ways in which the combustion process can be retarded by physical action: * By cooling: Some chemical reactions actually cool the material d ...
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