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Robert Leslie Graham (14 September 1911 – 12 June 1953) was a British motorcycle road racing who competed in the 1930s and 1940s. He won the inaugural Grand Prix motorcycle racing 500 cc World Championship in 1949.
In 1936 he managed to purchase a near new 250 cc OHC OK-Supreme cheaply, because it had dropped a valve. He rebuilt it, and entered it in the 1936 Ulster Grand Prix. After completing a lap of the Clady Circuit, the big end seized. He rebuilt it for 1937, and entered Northern Ireland's North West 200, and lead the Lightweights for a while until he came off. He remounted, joined the field, and was running third behind a couple of Excelsiors, when the valve gear broke. He rebuilt the engine again, and won his next race at Donington Park. He then entered the Ulster Grand Prix, and came fourth.
After this he was approached by John Humphries (the son of OK-Supreme's founder) to join the firm, and was given a job assembling the OHC engines. OK-Supreme produced short track racers with JAP engines. Les Graham, Andy McKay, and John Humphries soon became known as the English Midlands trio of OK-JAP riders. In summer of 1938 they raced in the South Eastern Championships on Layhams Farm "mountain mile" grass track. Les took the 20 lap Matchless Trophy, setting a record in the process, despite never having competed on that track before.
He came 12th in the 1938 Isle of Man TT Lightweight on an OK-Supreme. In 1939 he entered the IOM TT riding a Rudge engine Chris Tattersal St. Annes (CTS), and was running fourth on the second last lap, when the gearbox broke. Jock West was watching the race, and signed Les up to ride a Velocette in 1940, but the War intervened, and that did not happen.[1] TheBikeMuseum Les Graham - The Unassuming World Champion Download (Retrieved 27 October 2006)
He had an invitation from Wing Commander J.M. ("Jock") West, OBE, to join sales and competition at Associated Motorcycles (AMC).
The Motorcycle World Championships were first held in 1949, a year before the beginning of the four-wheeler Formula One World Championship. Les was the first winner of the prestigious 500 cc class, riding an AJS Porcupine.[3] MotorSportsEtc MotoGP & GP 500 World Champions (Retrieved 28 October 2006) The Championship began with Graham leading by 90 seconds in the 1st round, at the 1949 Isle of Man TT. With only a few miles to go, the magneto drive sheared and he pushed home to finish 9th. He won round 2 at Bremgarten in Switzerland and set fastest lap (in year 1 fastest laps counted for 1 point). Round 3 was the Dutch TT where he finished 2nd to Nello Pagani. He failed to finish in round 4 at Spa in Belgium. Round 5 was the Ulster Grand Prix in which he was victorious and collected the fastest lap. The final round was held at Monza in Italy where local hero Nello Pagani on a Gilera won. A rider's best three finishes counted. Graham had 2 wins & a second, Pagani had 2 wins & a 3rd. Graham took the title even though Pagani's overall score was higher.
In , Graham finished 3rd behind Italian Umberto Masetti (Gilera) and new star Geoff Duke (Norton) of England. He also competed in the 1950 International Six Days Trial held in Wales on an AJS 350. In , Domenico Agusta approached Graham to ride for MV Agusta. Frustrated by a lack of development with the AJS, he joined the Italian team to ride and develop their 500 cc four-cylinder machines. Graham failed to score points for MV in the 500 cc class. While the MVs were very powerful, the handling was not as well sorted, and the bikes were considered a "handful". Agusta were not competing in the 350 cc class, so Graham rode a Velocette MkVIII KTT 350 in competition, finishing 6th in class and winning the Swiss Grand Prix.[4] ClassicCarsMagazine Lot 381: 1948 Velocette 348 cc KTT MkVIII Racing Motorcycle (Retrieved 27 October 2006) He also finished 8th in the 125 cc class in 1951
For , Graham began with no points in round 1 in Switzerland, 2nd in the Isle of Man TT though a missed gear change and subsequent loss of power undoubtedly robbed him of a win. Reg Armstrong (Ireland), riding a factory Norton took victory, a very lucky one with Armstrong's chain breaking as he crossed the finish line, with Les Graham 33.4 seconds behind. He failed to score points in the Dutch TT or the Belgian GP. He finished 4th with the fastest lap at Solituderennen in West Germany. He suffered another non-finish but fastest lap in the Ulster (Tyre tread problems with his Dunlop Rubber). He followed this with MV Agusta's first ever 500 cc win plus the fastest lap in front of an enthusiastic Italian crowd at Monza. This was followed by a second win in Spain. He finished the season second to Gilera's Umberto Masetti in the championship. In the 250 cc class, he finished 3rd using Velocette and Benelli machines and claimed 4th in the 125 cc class for MV Agusta. For , Graham was the pre-season favorite and tipped to win the championship again, starting the year with a victory at the prestigious, pre-season Mettet Grand Prix invitational race. At Isle of Man TT, he was finally victorious with a win in the 1953 Lightweight 125 cc class for MV. However, during Friday's Senior TT, he lost control of his bike at high speed, as he took the rise after the bottom of Bray Hill, and was killed instantly. The crash was caused by the bike's forks getting jammed on full compression. Carlo Bandirola and the rest of the MV racing team withdrew from the Championship that year as a mark of respect. The commemorative Graham Memorial shelter was built on the Snaefell mountain road in 1955.
1949 point system
| Position | 1 | 2 | 3 | 4 | 5 | Fastest lap |
| Points | 10 | 8 | 7 | 6 | 5 | 1 |
| Position | 1 | 2 | 3 | 4 | 5 | 6 |
| Points | 8 | 6 | 4 | 3 | 2 | 1 |
() (Races in italics indicate fastest lap)
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