The Sidecar TT is a motorcycle-with-sidecar road race competition held over two legs which takes place during the Isle of Man TT festival, an annual event at the end of May and beginning of June. Between 1954 and 1976 this race was part of the Grand Prix motorcycle racing world championship.

Engine capacity

The 1923 races was the first time the Sidecar TT race was run, over 3 laps (113 miles) of the Mountain Course won by Freddie Dixon and passenger T.W.Denney with a special Douglas banking-sidecar at an average race speed of 53.15 mph. For the 1926 races the Sidecar TT and Ultra-Lightweight TT were dropped due to lack of entries. The Sidecar TT race was re-introduced in the 1954 event for machines not exceeding 500 cc engine capacity, run on the Clypse Course. A non-championship 750 cc class for sidecars was introduced for the 1968 event. From 1975, the previous 500 cc and 750 classes were replaced by a 1000 cc engine capacity class. For 1976 the event became a race held over two-legs. The new FIM Formula 2 class for Sidecar outfits was introduced for the 1990 races.

Eligibility

Entrants

Formula Two Sidecar TT Specifications

The 2012 specification for entries into the Sidecar TT race were defined as any machine complying with the following specifications:

Official Qualification Time

Speed and lap records

The lap record for the Sidecar TT is 18 minutes and 45.85 seconds, an average speed of 120.645 mph set by Ben Birchall and passenger Tom Birchall during Race 2 in 2023. They also set a new race record of 56 minutes and 41.816 seconds, an average race speed of 119.784 mph for 3 laps (113.00 miles) of the Mountain Course, bettering their own race-record set in 2018.

Sidecar TT race winners

By driver

By passenger

By marque