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Isle of Man TT sidecar racing returns with significant rule changes for 2027

Yahoo Sports • 1 min read • Latest: Sep 16, 2026, 11:15 AM

Last updated Sep 16, 2026

Isle of Man TT sidecar racing returns with significant rule changes for 2027

Summary

The Isle of Man TT sidecar racing will return in 2027 after being canceled for the 2026 event following serious accidents during qualifying. Organizers announced changes including the banning of the four-cylinder, 600cc engine, allowing newer middleweight motorcycle powerplants to compete. A new 'Balance of Performance' approach will be implemented to ensure fairness among teams. Safety and technical compliance regulations will be revised, affecting chassis construction and aerodynamic development. Both sidecar races in 2027 will consist of two laps, with eligibility requirements for competitors to be detailed later.

Source Links

Yahoo Sports

Status Watch

•Sidecar class canceled in 2026 due to qualifying accidents.
•New engine regulations will allow middleweight motorcycle powerplants.
•Aerodynamic features will be restricted to improve safety.
•Competitors must demonstrate recent activity and medical fitness.
•2027 races will consist of two laps on the course.

Latest Updates

11:15 AMYahoo Sports — Isle Of Man TT Sidecar Racing Will Return Next Year, But With Some Changes

What they're saying

"
After a cancellation of the entire sidecar class following some scary qualifying accidents at the 2026 IOMTT, organizers have come to a decision.
— Yahoo Sports

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