Sidecar Speedway is a motorcycle sport involving 4 crews of a rider and a passenger competing over 4 laps on an oval shale surface. Rules are governed by the national speedway federation and are not dissimilar to conventional speedway rules.

Sidecar speedway is most popular in Australia although in Great Britain it also has a strong following. Sidecar speedway events are also held in New Zealand and United States of America. Because of the nature