1.
Wheelchair
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A wheelchair, often abbreviated to just chair, is a chair with wheels, used when walking is difficult or impossible due to illness, injury, or disability. Wheelchairs come in a variety of formats to meet the specific needs of their users. They may include specialized seating adaptions, individualized controls, and may be specific to particular activities, as seen with sports wheelchairs and beach wheelchairs. The earliest records of wheeled furniture are an inscription found on a slate in China. The first records of wheeled seats being used for transporting disabled people date to three centuries later in China, the Chinese used early wheelbarrows to move people as well as heavy objects. A distinction between the two functions was not made for several hundred years, around 525 CE, when images of wheeled chairs made specifically to carry people begin to occur in Chinese art. Later records show the use of technology in Europe by the Renaissance. The invalid carriage or Bath chair brought the technology into more common use from around 1760, in 1887, wheelchairs were introduced to Atlantic City so invalid tourists could rent them to enjoy the Boardwalk. Soon, many healthy tourists also rented the decorated rolling chairs and servants to them as a show of decadence. In 1933 Harry Jennings and his disabled friend Herbert Everest, both engineers, invented the first lightweight, steel, collapsible wheelchair. Everest had previously broken his back in a mining accident, Everest and Jennings saw the business potential of the invention and went on to become the first mass-market manufacturers of wheelchairs. Their x-brace design is still in use, albeit with updated materials. There are a variety of types of wheelchair, differing by propulsion method, mechanisms of control. Some wheelchairs are designed for everyday use, others for single activities. The iBot is perhaps the best known example of this in recent years, a self-propelled manual wheelchair incorporates a frame, seat, one or two footplates and four wheels, usually two caster wheels at the front and two large wheels at the back. There will generally also be a seat cushion. As this causes friction and heat build-up, particularly on long downslopes, everyday manual wheelchairs come in two major varieties, folding or rigid. Folding chairs are generally low-end designs, whose predominant advantage is being able to fold, however this is largely an advantage for part-time users who may need to store the wheelchair more often than use it
2.
Track and field
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Track and field is a sport which includes athletic contests established on the skills of running, jumping, and throwing. The name is derived from the sports venue, a stadium with an oval running track enclosing a grass field where the throwing and jumping events take place. Track and field is categorised under the sport of athletics, which also includes road running, cross country running. The foot racing events, which include sprints, middle- and long-distance events, the jumping and throwing events are won by the athlete who achieves the greatest distance or height. Regular jumping events include long jump, triple jump, high jump and pole vault, while the most common throwing events are shot put, javelin, discus and hammer. There are also combined events or multi events, such as the pentathlon consisting of five events, heptathlon consisting of seven events, in these, athletes participate in a combination of track and field events. Most track and field events are individual sports with a victor, the most prominent team events are relay races. Events are almost exclusively divided by gender, although both the mens and womens competitions are held at the same venue. It is one of the oldest sports, in ancient times, it was an event held in conjunction with festivals and sports meets such as the Ancient Olympic Games in Greece. The ancient Olympic Games began in the year 776 BC, when Koroibos, a cook from the city of Elis, won the stadium race. According to some traditions, this was the only athletic event of the games for the first 13 Olympic festivals. In modern times, the two most prestigious track and field competitions are athletics competition at the Olympic Games and the IAAF World Championships in Athletics. The International Association of Athletics Federations is the governing body. Records are kept of the best performances in specific events, at world and national levels, however, if athletes are deemed to have violated the events rules or regulations, they are disqualified from the competition and their marks are erased. In North America, the track and field may be used to refer to other athletics events, such as the marathon. The sport of track and field has its roots in human prehistory, Track and field-style events are among the oldest of all sporting competitions, as running, jumping and throwing are natural and universal forms of human physical expression. The first recorded examples of organized track and field events at a festival are the Ancient Olympic Games. At the first Games in 776 BC in Olympia, Greece, only one event was contested, Track and field events were also present at the Panhellenic Games in Greece around this period, and they spread to Rome in Italy around 200 BC
3.
Summer Paralympic Games
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The Summer Paralympic Games or the Games of the Paralympiad, are an international multi-sport event, where athletes with physical disabilities compete. This includes athletes with mobility disabilities, amputations, blindness, the Paralympic Games are held every four years, organized by the International Paralympic Committee. Medals are awarded in each event, with medals for first place, silver for second and bronze for third. The United States and the United Kingdom have each hosted two Summer Paralympic Games, more than any other nation. Other countries that have hosted the summer Paralympics are Australia, Canada, China, Greece, Israel, Italy, Japan, Netherlands, South Korea, Spain, in the 2016 Summer Paralympics, Brazil will host the first Summer Games in South America in Rio de Janeiro. Tokyo will be the first city to host the Summer Paralympics more than once,1964 and 2020. Seven of those countries have won at least one medal at every Summer Paralympic Games, Australia, Austria, France, Great Britain, Italy, Netherlands. The United States have been the nation for eight of the Paralympic Summer Games,1964,1968,1976,1980,1984,1988,1992 and 1996. China have been the nation for the four most recent Games,2004,2008,2012 and 2016. Italy, West Germany and Australia have been the nation one time each. Qualification rules for each of the Paralympic sports are set by the International Federation that governs that sports international competition, the first official Paralympic Games, was held in Rome in 1960. 400 athletes from 23 countries competed at the 1960 Games though only athletes in wheelchairs competed, at the 1976 Summer Games athletes with different disabilities were included for the first time at a summer Paralympics. With the inclusion of more disability classifications, the 1976 Summer Games expanded to 1,600 athletes from 40 countries, the 1988 Summer Paralympics were the first to be hosted in the same venues as the Olympics of that year. Since then, all Paralympic Games are now held in the city that hosted the Olympics. Each Paralympic sport then has its own classifications, dependent upon the physical demands of competition. Events are given a code, made of numbers and letters, describing the type of event, within the ten disability categories the athletes still need to be divided according to their level of impairment. The classification systems differ from sport to sport, and is intended to even the playing field so as to allow as many athletes to participate as possible, classifications vary in accordance with the different skills required to perform the sport. Archery, Archery is open to athletes with a physical disability, classifications are broken up into three divisions, W1, spinal cord injured and Cerebral Palsy athletes with impairment in all four limbs
4.
Sport of athletics
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Athletics is a collection of sporting events that involve competitive running, jumping, throwing, and walking. The most common types of competitions are track and field, road running, cross country running. The results of racing events are decided by finishing position, while the jumps, the simplicity of the competitions, and the lack of a need for expensive equipment, makes athletics one of the most commonly competed sports in the world. Athletics is mostly an individual sport, with the exception of relay races and competitions which combine athletes performances for a team score, organized athletics are traced back to the Ancient Olympic Games from 776 BCE. The rules and format of the events in athletics were defined in Western Europe and North America in the 19th and early 20th century. Most modern top level meetings are conducted by the International Association of Athletics Federations, the athletics meeting forms the backbone of the Summer Olympics. The foremost international athletics meeting is the IAAF World Championships in Athletics, other top level competitions in athletics include the IAAF World Cross Country Championships and the IAAF World Half Marathon Championships. Athletes with a disability compete at the Summer Paralympics and the IPC Athletics World Championships. The word athletics is derived from the Ancient Greek ἀθλητής from ἆθλον or ἆθλος, initially, the term was used to describe athletic contests in general – i. e. sporting competition based primarily on human physical feats. In the 19th century, the term acquired a more narrow definition in Europe. This definition continues to be the most prominent one in the United Kingdom, furthermore, foreign words in many German and Roman languages which are related to the term athletics also have a similar meaning. In much of North America, athletics is synonymous with sports in general, the word athletics is rarely used to refer to the sport of athletics in this region. Track and field is preferred, and is used in the United States and Canada to refer to most athletics events, including racewalking, Athletic contests in running, walking, jumping and throwing are among the oldest of all sports and their roots are prehistoric. Athletics events were depicted in the Ancient Egyptian tombs in Saqqara, with illustrations of running at the Heb Sed festival, the Tailteann Games were an ancient Celtic festival in Ireland, founded around 1800 BCE, and the thirty-day meeting included running and stone-throwing among its sporting events. The original and only event at the first Olympics in 776 BCE was a running event known as the stadion. This later expanded to include throwing and jumping events within the ancient pentathlon, Athletics competitions also took place at other Panhellenic Games, which were founded later around 500 BCE. The Cotswold Olimpick Games, a festival which emerged in 17th century England. Annually, from 1796 to 1798, LOlympiade de la République was held in revolutionary France, the premier event of this competition was a running event, but various ancient Greek disciplines were also on display
5.
2015 Tokyo Marathon
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The 2015 Tokyo Marathon was the ninth edition of the annual marathon race in Tokyo, Japan and was held on Sunday,22 February. An IAAF Gold Label Road Race, it was the first World Marathon Majors event to be held that year, the elite race winners were both from Ethiopia – the first such time that athletes from the same nation won the mens and womens division. Endeshaw Negesse was just over twenty seconds off the record with 2,06,00 hours while Berhane Dibaba took the womens title in 2,23,15. It was the first major win for both athletes, although Berhane Dibaba had been runner-up in Tokyo the previous year. The reigning Olympic and world champion Stephen Kiprotich was runner-up in the race and Dickson Chumba was third. The womens podiumw as rounded out by Helah Kiprop and reigning Olympic champion Tiki Gelana, the 2014 womens champion, Tirfi Tsegaye did not return to defend her title. The fastest home athletes both finished in seventh overall, Masato Imai in the mens and Madoka Ogi in the womens division. As in the year, the wheelchair race was principally a national affair. Wakako Tsuchida defended her title while Kota Hokinoue—winner at the 2014 Berlin Marathon—won the mens race for the first time. Other notable performers Ryo Yamamoto, 17th,2,12,46 Yuki Sato, 20th,2,14,15 Arata Fujiwara, 37th,2,19,40 Race results Results 2015 Tokyo Marathon Man
6.
Archery
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Archery is the sport, practice or skill of using a bow to propel arrows. The word comes from the Latin arcus, historically, archery has been used for hunting and combat. In modern times, it is mainly a competitive sport and recreational activity, a person who participates in archery is typically called an archer or a bowman, and a person who is fond of or an expert at archery is sometimes called a toxophilite. The bow and arrow seems to have invented in the later Paleolithic or early Mesolithic periods. The oldest signs of its use in Europe come from the Stellmoor in the Ahrensburg valley north of Hamburg, Germany and dates from the late Paleolithic, about 10, 000–9000 BC. The arrows were made of pine and consisted of a mainshaft, there are no definite earlier bows, previous pointed shafts are known, but may have been launched by spear-throwers rather than bows. The oldest bows known so far come from the Holmegård swamp in Denmark, bows and arrows have been present in Egyptian culture since its predynastic origins. In the Levant, artifacts that could be arrow-shaft straighteners are known from the Natufian culture, the Khiamian and PPN A shouldered Khiam-points may well be arrowheads. Classical civilizations, notably the Assyrians, Greeks, Armenians, Persians, Parthians, Indians, Koreans, Chinese, akkadians were the first to use composite bows in war according to the victory stele of Naram-Sin of Akkad. The Welsh longbow proved its worth for the first time in Continental warfare at the Battle of Crécy, in the Americas archery was widespread at European contact. Archery was highly developed in Asia, the Sanskrit term for archery, dhanurveda, came to refer to martial arts in general. In East Asia, Goguryeo, one of the Three Kingdoms of Korea was well known for its regiments of skilled archers. Central Asian tribesmen and American Plains Indians became extremely adept at archery on horseback, lightly armoured, but highly mobile archers were excellently suited to warfare in the Central Asian steppes, and they formed a large part of armies that repeatedly conquered large areas of Eurasia. Shorter bows are more suited to use on horseback, and the bow enabled mounted archers to use powerful weapons. It is possible that barbarian peoples were responsible for introducing archery or certain types of bows to their civilized counterparts—the Xiong-nu, similarly, short bows seem to have been introduced to Japan by northeast Asian groups. The development of firearms rendered bows obsolete in warfare, albeit efforts were made to preserve archery practice. In Wales and England, for example, the government tried to practice with the Longbow until the end of the 16th century. This was because it was recognised that the bow had been instrumental to military success during the Hundred Years War, early firearms were inferior in rate-of-fire, and were very susceptible to wet weather
7.
Bowls
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Bowls or lawn bowls is a sport in which the objective is to roll biased balls so that they stop close to a smaller ball called a jack or kitty. It is played on a green which may be flat or convex or uneven. It is normally played outdoors and the surface is either natural grass, artificial turf. It has been traced certainly to the 13th century, and conjecturally to the 12th, the jactus lapidum of which he speaks may have been more akin to shotput. It is beyond dispute, however, that the game, at any rate in a form, was played in the 13th century. A manuscript of that period in the library, Windsor. The worlds oldest surviving bowling green is the Southampton Old Bowling Green, another manuscript of the same century has a crude but spirited picture which brings us into close touch with the existing game. Three figures are introduced and a jack, a 14th-century manuscript, Book of Prayers, in the Francis Douce collection in the Bodleian Library at Oxford contains a drawing in which two persons are shown, but they bowl to no mark. Strutt suggests that the first players bowl may have been regarded by the player as a species of jack. In the third he stands almost upright, in the first he kneels, in the second he stoops, the game eventually came under the ban of king and parliament, both fearing it might jeopardise the practice of archery, then so important in battle. Statutes forbidding it and other sports were enacted in the reigns of Edward III, Richard II, even when, on the invention of gunpowder and firearms, the bow had fallen into disuse as a weapon of war, the prohibition was continued. The word bowls occurs for the first time in the statute of 1511 in which Henry VIII confirmed previous enactments against unlawful games and it was further enjoined that any one playing bowls outside his own garden or orchard was liable to a penalty of 6s. While those possessed of lands of the value of £100 might obtain licences to play on their own private greens. Young Mitchell was only 11 when he played on Kilmarnock Bowling green and this is turn led to the codification of modern rules for many sports, including lawn bowls, most football codes, lawn tennis and others. National Bowling Associations were established in the late 1800s, today the sport is played in over 40 countries with more than 50 member national authorities. The home of the game is still Scotland with the World Bowls centre in Edinburgh at Caledonia House,1 Redheughs Rigg, South Gyle, Edinburgh. Lawn bowls is played on a large, rectangular, precisely levelled and manicured grass or synthetic surface known as a bowling green which is divided into parallel playing strips called rinks. Once it has come to rest, the jack is aligned to the centre of the rink, a bowl may curve outside the rink boundary on its path, but must come to rest within the rink boundary to remain in play
8.
Table tennis
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Table tennis, also known as ping pong, is a sport in which two or four players hit a lightweight ball back and forth across a table using a small bat. The game takes place on a hard table divided by a net, a point is scored when a player fails to return the ball within the rules. Play is fast and demands quick reactions, spinning the ball alters its trajectory and limits an opponents options, giving the hitter a great advantage. Table tennis is governed by the worldwide organization International Table Tennis Federation, ITTF currently includes 220 member associations. The table tennis rules are specified in the ITTF handbook. Table tennis has been an Olympic sport since 1988, with several event categories, from 1988 until 2004, these were mens singles, womens singles, mens doubles and womens doubles. Since 2008, an event has been played instead of the doubles. The sport originated in Victorian England, where it was played among the upper-class as a parlour game. It has been suggested that makeshift versions of the game were developed by British military officers in India in around 1860s or 1870s, who brought it back with them. A row of books stood up along the center of the table as a net and it had several different names, including whiff-whaff. The name ping-pong was in use before British manufacturer J. Jaques & Son Ltd trademarked it in 1901. The name ping-pong then came to describe the game played using the rather expensive Jaquess equipment, a similar situation arose in the United States, where Jaques sold the rights to the ping-pong name to Parker Brothers. Parker Brothers then enforced its trademark for the term in the 1920s making the various associations change their names to table tennis instead of the more common, but trademarked, term. The next major innovation was by James W. Gibb, a British enthusiast of table tennis, who discovered novelty celluloid balls on a trip to the US in 1901 and found them to be ideal for the game. This was followed by E. C. Goode who, in 1901, invented the modern version of the racket by fixing a sheet of pimpled, or stippled, rubber to the wooden blade. Table tennis was growing in popularity by 1901 to the extent that tournaments were being organized, books being written on the subject, in 1921, the Table Tennis Association was founded in Britain, and the International Table Tennis Federation followed in 1926. London hosted the first official World Championships in 1926, in 1933, the United States Table Tennis Association, now called USA Table Tennis, was formed. In the 1930s, Edgar Snow commented in Red Star Over China that the Communist forces in the Chinese Civil War had a passion for the English game of table tennis which he found bizarre
9.
Shot put
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The shot put is a track and field event involving throwing/putting a heavy spherical object —the shot—as far as possible. The shot put competition for men has been a part of the modern Olympics since their revival in 1896, homer mentions competitions of rock throwing by soldiers during the Siege of Troy but there is no record of any dead weights being thrown in Greek competitions. The first evidence for stone- or weight-throwing events were in the Scottish Highlands, in the 16th century King Henry VIII was noted for his prowess in court competitions of weight and hammer throwing. The first events resembling the modern shot put likely occurred in the Middle Ages when soldiers held competitions in which they hurled cannonballs, shot put competitions were first recorded in early 19th century Scotland, and were a part of the British Amateur Championships beginning in 1866. Competitors take their throw from inside a marked circle 2.135 metres in diameter, the following rules are adhered to for a legal throw, Upon calling the athletes name, the athlete may enter from any part of the throwing circle. They have sixty seconds to commence the throwing motion otherwise they are banned from the game, the athlete may not wear gloves, IAAF rules permit the taping of individual fingers. The athlete must rest the shot close to the neck, the shot must be released above the height of the shoulder, using only one hand. The athlete may touch the surface of the circle or toe board. Limbs may however extend over the lines of the circle in the air, the shot must land in the legal sector of the throwing area. The athlete must leave the circle from the back. The athlete may enter the circle at the location of their choice. Foul throws occur when an athlete, Does not pause within the circle before beginning the throwing motion, does not complete the throwing movement within sixty seconds of having their name called. Allows the shot to drop below his shoulder or outside the plane of his shoulder during the put. At any time if the shot loses contact with the neck then it is technically an illegal throw, during the throwing motion, touches with any part of the body, the top or ends of the toe board the top of the iron ring anywhere outside the circle. Throws a shot which either falls outside the sector or touches a sector line on the initial impact. Leaves the circle before the shot has landed, does not leave from the rear half of the circle. The following are either obsolete or non-existent, but commonly believed rules within professional competition, the athlete entering the circle, then exiting and re-entering it prior to starting the throw results in a foul. Each competition has a set number of rounds of throws, typically there are three preliminary rounds to determine qualification for the final, and then three more rounds in the final
10.
Javelin throw
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The javelin throw is a track and field event where the javelin, a spear about 2.5 m in length, is thrown. The javelin thrower gains momentum by running within a predetermined area, Javelin throwing is an event of both the mens decathlon and the womens heptathlon. The javelin was part of the pentathlon of the Ancient Olympic Games beginning in 708 BC in two disciplines, distance and target throw, the javelin was thrown with the aid of a thong, called ankyle wound around the middle of the shaft. Athletes would hold the javelin by the thong and when the javelin was released this thong unwound giving the javelin a spiraled flight, throwing javelin-like poles into targets was revived in Germany and Sweden in the early 1870s. In Sweden, these developed into the modern javelin, and throwing them for distance became a common event there. The rules continued to evolve over the decades, originally, javelins were thrown with no run-up. Limited run-ups were introduced in the late 1890s, and soon developed into the modern unlimited run-up, swedens Eric Lemming, who threw his first world best in 1899 and ruled the event from 1902 to 1912, was the first dominant javelin thrower. Competitions for the hand only were less common, though not unknown. At the Olympics a both-hands contest was only once, in 1912, Finland swept the medals. Hungarys Mór Kóczán used a freestyle end grip to break the 60-meter barrier in 1911, the first known womens javelin marks were recorded in Finland in 1909. Originally, women threw the same implement as men, a lighter, shorter javelin for women was introduced in the 1920s, womens javelin throw was added to the Olympic program in 1932, Mildred Babe Didrikson of the United States became the first champion. For a long time, javelins were made of wood, typically birch. The current mens record is held by Jan Železný at 98.48 m. Of the 69 Olympic medals that have been awarded in the javelin,32 have gone to competitors from Norway. Finland has, however, never been nearly as successful in the womens javelin, the javelin was also part of some of the many early forms of womens pentathlon, and has always been included in the heptathlon after it replaced the pentathlon in 1981. The size, shape, minimum weight, and center of gravity of the javelin are all defined by IAAF rules. In international competition, men throw a javelin between 2.6 and 2.7 m in length and 800 g in weight, the javelin has a grip, about 150 mm wide, made of cord and located at the javelins center of gravity. Unlike the other throwing events, the used to throw the javelin is dictated by IAAF rules
11.
Marathon
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The marathon is a long-distance running race with an official distance of 42.195 kilometres, usually run as a road race. The event was instituted in commemoration of the run of the Greek soldier Pheidippides, a messenger from the Battle of Marathon to Athens. The marathon was one of the original modern Olympic events in 1896, more than 800 marathons are held throughout the world each year, with the vast majority of competitors being recreational athletes as larger marathons can have tens of thousands of participants. The name Marathon comes from the legend of Philippides or Pheidippides and it is said that he ran the entire distance without stopping and burst into the assembly, exclaiming νενικήκαμεν, before collapsing and dying. Lucian of Samosata also gives the story, but names the runner Philippides, there is debate about the historical accuracy of this legend. In some Herodotus manuscripts, the name of the runner between Athens and Sparta is given as Philippides, in 1879, Robert Browning wrote the poem Pheidippides. Brownings poem, his story, became part of late 19th century popular culture and was accepted as a historic legend. This route, as it existed when the Olympics were revived in 1896, was approximately 40 kilometres long, and this route is considerably shorter, some 35 kilometres, but includes a very steep initial climb of more than 5 kilometres. When the modern Olympics began in 1896, the initiators and organizers were looking for a great popularizing event, the idea of a marathon race came from Michel Bréal, who wanted the event to feature in the first modern Olympic Games in 1896 in Athens. This idea was supported by Pierre de Coubertin, the founder of the modern Olympics. The Greeks staged a race for the Olympic marathon on 10 March 1896 that was won by Charilaos Vasilakos in 3 hours and 18 minutes. The winner of the first Olympic marathon, on 10 April 1896, was Spyridon Louis, the marathon of the 2004 Summer Olympics was run on the traditional route from Marathon to Athens, ending at Panathinaiko Stadium, the venue for the 1896 Summer Olympics. The womens marathon was introduced at the 1984 Summer Olympics and was won by Joan Benoit of the United States with a time of 2 hours 24 minutes and 52 seconds. It has become a tradition for the mens Olympic marathon to be the last event of the athletics calendar, often, the mens marathon medals are awarded during the closing ceremony. The Olympic mens record is 2,06,32, set at the 2008 Summer Olympics by Samuel Kamau Wanjiru of Kenya, the Olympic womens record is 2,23,07, set at the 2012 Summer Olympics by Tiki Gelana of Ethiopia. The mens London 2012 Summer Olympic marathon winner was Stephen Kiprotich of Uganda, per capita, the Kalenjin ethnic group of Rift Valley Province in Kenya has produced a highly disproportionate share of marathon and track-and-field winners. Johnny Hayes victory at the 1908 Summer Olympics contributed to the growth of long-distance running and marathoning in the United States. Later that year, races around the season including the Empire City Marathon held on New Years Day 1909 in Yonkers, New York
12.
Bicycle tire
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A bicycle tire is a tire that fits on the wheel of a bicycle, unicycle, tricycle, quadracycle, bicycle trailer, or trailer bike. They may also be used on wheelchairs and handcycles, especially for racing, Bicycle tires provide an important source of suspension, generate the lateral forces necessary for balancing and turning, and generate the longitudinal forces necessary for propulsion and braking. They are the second largest source, after air drag, of consumption on a level road. The modern detachable pneumatic bicycle tire contributed to the popularity and eventual dominance of the safety bicycle, the first bicycle tires were iron bands on the wooden wheels of velocipedes. These were followed by rubber tires on penny-farthings. The first patent for rubberized wheels was granted to Clément Ader in 1868, in an attempt to soften the ride, rubber tires with a hollow core were also tried. The first practical pneumatic tire was made by John Boyd Dunlop in 1887 for his sons bicycle, Dunlop is credited with realizing rubber could withstand the wear and tear of being a tire while retaining its resilience. This led to the founding of Dunlop Pneumatic Tyre Co, by 1890, it began adding a tough canvas layer to the rubber to reduce punctures. Racers quickly adopted the pneumatic tire for the increase in speed it enabled, finally, the detachable tire was introduced in 1891 by Édouard Michelin. It was held on the rim with clamps, instead of glue, three main techniques for attaching a bicycle tire to a rim have been developed, clincher, wired and tubular. Clinchers originally did not have wire in the beads and the shape of the bead interlocked with a flange on the rim, however, this type of tire is no longer in general use and the term clincher has transferred to the modern wired-on tire. For the remainder of this article, the use of the word clincher will be assumed. In an attempt to provide the best attributes of both wired and tubular methods, tubular clinchers have also been offered, most bicycle tires are clincher for use with clincher rims. These tires have a wire or Kevlar fiber bead that interlocks with flanges in the rim. A separate airtight inner tube enclosed by the rim supports the tire carcass, an advantage of this system is that the inner tube can be easily accessed in the case of a leak to be patched or replaced. The ISO 5775-2 standard defines designations for bicycle rims and it distinguishes between Straight-side rims Crochet-type rims Hooked-bead rims Traditional wired-on rims were straight-sided. Various hook designs re-emerged in the 1970s to hold the bead of the tire in place and this allows higher air pressures than older wired-on tires. In these designs, it is the interlocking of the bead with the rim, not the tight fit or resistance to stretching of the bead, some tires are torus-shaped and attached to tubular rims with adhesive
