Michael Sydney Doohan is an Australian former Grand Prix motorcycle road racing World Champion, who won five consecutive 500 cc World Championships.
Doohan aboard the Rothmans Honda NSR500, 1990
Doohan leads Kevin Schwantz, Wayne Rainey and John Kocinski at the 1991 Japanese Grand Prix
The 1989 Grand Prix motorcycle racing season was the 41st F.I.M. Road Racing World Championship season.
Eddie Lawson (pictured at Suzuka) became the 500cc world champion
Sito Pons (pictured at Suzuka) became the 250cc world champion