The MV Agusta 500 four-cylinder (1973–1976) was a racing motorcycle manufactured by the Italian company MV Agusta, for competing in the 500 cc series, the premier class of the FIM World Motorcycle Championship. With this motorcycle MV Agusta won the 1973 constructor's world champion and Phil Read won the 1973 and 1974 500 cc riders world championships.

The Yamaha YZR500 was a 500 cc Grand Prix racing motorcycle made by Yamaha from 1973 through 2002.