1977 Grand Prix motorcycle racing season

Pier Paolo Bianchi successfully defended his 125cc title while fellow countryman Mario Lega captured the 250cc championship for the tiny Italian concern.

[1] The season was marred by numerous fatal accidents, including a terrible crash at the 350cc Austrian Grand Prix that claimed the life of Swiss rider, Hans Stadelmann and seriously injuring Johnny Cecotto, Patrick Fernandez, Dieter Braun and Franco Uncini.

After having been issued an ultimatum by the FIM, the Yugoslavian race organizers failed to take action to improve the safety of the circuit – which was notorious for its numerous road-side hazards including solid rock walls and steep, barely protected drop offs.

[5] The event was a disaster with Italian rider, Giovanni Ziggiotto, crashing during practice for the 250cc race when his motorcycle's engine seized and he was hit from behind by Per-Edward Carlson.

[1] Giacomo Agostini would retire after the season, ending his seventeen-year career with a record 122 Grand Prix victories and 15 World Championships.