He won the inaugural Grand Prix motorcycle racing 500 cc World Championship in 1949 .
Robert Leslie ( Les ) Graham DFC ( 14 September 1911 in Wallasey - 12 June 1953 ) was a British motorcycle road racer who competed in the 1930s and 1940s .
Robert Leslie won the inaugural Grand Prix motorcycle racing 500 cc World Championship in 1949 .
Robert Leslie ( Les ) Graham DFC ( 14 September 1911 in Wallasey - 12 June 1953 ) was a British motorcycle road racer who competed in the 1930s and 1940s .