MotoGP Fan Zone on Twitter: "Dario Ambrosini (14, Benelli) won the 250cc race at Bremgarten from Bruno Ruffo #12, Gianni Leoni #10. 1951 Swiss GP https://t.co/poy9B3SwVi" / Twitter
Moto Guzzi 'bird beak' 250 racer
Dario Ambrosini - Wikipedia
Dario Ambrosini Champion du Monde 250 cc 1950 . | Motos anciennes, Communauté