There are annual world championship events in the sport of motorcycle speedway for individual riders - the Speedway Grand Prix - and for national teams - the Speedway World Cup. Each has a counterpart for riders under 21: the Speedway World Under 21 Championship and the Team Speedway Junior World Championship. A pairs event, the Speedway World Pairs Championship, ran until 1993.
References
Speedway World Championship Competitions Wikipedia(Text) CC BY-SA