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
Doug Hele The race win was repeated in 1967. At the 1969 Belgian Grand Prix on the Spa-Francorchamps circuit in the Ardennes, Triumph's factory tester Percy Tait led the world champion Giacomo Agostini for three laps and finished second at an average speed of 116 mph on Hele's Daytona racer. Hele had also started work on development of the three-cylinder Triumph Trident. "Motor Cycle"'s Technical Editor Vic Willoughby concluded his 1967 interview with Hele's confirmation that "...a high-performance seven-fifty parallel twin is not exactly at the top of the desirability stakes", and the triples were developed into the most successful race bikes