Roberta Bonanomi was active as a cyclist on the road from the early 1980s until the early 2000s. In 1988 she became world champion in the team time trial, together with Maria Canin, Monica Bandini and Francesca Galli. The following year, she won the Giro d' Italia Femminile, the Norway - tour and the Italian team was in the same composition as in the previous vice-champion. In 1993 they occupied at the Road World Championships in the team time trial in third place, together with Alessandra Cappellotto, Michela Fanini and Fabiana Luperini.
1994 Second Bonanomi of the Giro del Trentino Alto Adige. In 1995 she was Italian Vice - Champion in the time trial, third in the Giro d' Italia Femminile, again second in the Giro del Trentino Alto Adige and second in the Masters Feminin.
Five times 1984-2000 launched Roberta Bonanomi at the Olympic Games, but was never put forward to.