A Tuscan like Bartali, Magni won three Giro d’Italia races, the world’s second-greatest cycling tour after the Tour de France, in 1948, 1951 and 1955.
He also came second in 1956, at the age of 36.
He was runner-up in the world road race championships in 1951. After retiring he became a cycling official and managed the Italian cycling team for several years.