- 3.1 External links
- 3.2 Notes and references
Simmonds made his debut in 1966 on Honda in the motorcycle world championship. Then From 1967 he started for the Japanese manufacturer Kawasaki in the displacement classes 125-500 cc.
He had his best season by far in 1969 in the 125 cc class. This year, Simmonds won eight of the eleven races held and was twice runner-up. This secured with large distance in front of the German Suzuki pilot Dieter Braun the world title. At the same time these drivers' championship title and the first dar. for Kawasaki in the history of the Motorcycle World Championship In 1971, Simmonds celebrate his only 500cc win at the Spanish Grand Prix, at the end of the season he finished fourth overall in this class.
Dave Simmonds died on 23 October 1972. He succumbed to severe burns he had sustained in the explosion of a gas cylinder in Jack Findlay's caravan in the French Rungis.