The victory of Paul Smart, and second place for his teammate Bruno Spaggiari in April 23rd 1972 on the Imola race track represents a milestone in Ducati’s racing history. It was the starting point for the famous Ducati L-twin desmo sport motorcycles. The new Ducati 750 racer was based on the GT 750 roadster. A 750 Sport as well as the famous 750 SS road sport bike and production race version followed and evolved in 1976 to the 900SS which continued until the early 1980s.
For more information on Paul Smart : en.wikipedia.org/wiki/Paul_Smart_(motorcycle_racer)
More information on the Ducati Supersport models : en.wikipedia.org/wiki/Ducati_SuperSport