British motorcycle Grand Prix British motorcycle Grand Prix The British motorcycle Grand Prix is a motorcycling event that is part of the Grand Prix motorcycle racing season. Before 1977, the only British round was the Isle of Man TT, which was part of the FIM championship from its inauguration in 1949 until 1976. The Isle of Man TT was the most prestigious event on the Grand Prix motorcycling calendar from 1949-1972. After the 1972 event, multiple world champion Giacomo Agostini dropped a bombshell on the motorsports world by stating he would never race at the Isle of Man TT again, stating the 37-mile (62
1972 Isle of Man TT of Parlotti, his friend, Giacomo Agostini, an Italian MV Agusta rider and a ten time 350cc and 500cc world champion, announced that he would never return to the Isle of Man to race. He considered the course too dangerous for international competition. As the years went on more top riders joined Agostini's boycott and in 1976 it was announced that the TT would be removed from the championship calendar. The British round of the FIM championship was held at Silverstone Circuit on the mainland from 1977 onwards. In the last race of the 1972 event, Agostini won his 10th TT