Dunlop Girls, Chinese MotoGP Race 2007

1972: As 1968.
1972: Death of Gilberto Parlotti at the Isle of Man TT, leading ultimately to the loss of its championship status.
1973: Deaths of Jarno Saarinen and Renzo Pasolini at the Italian round at Monza.
1974: The Suzuki RG500 is the first square-4 in the 500cc class.