Tom and his brother Ben Birchall have been the dominant force in Sidecars at the Isle of Man for the past decade.
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In their time together, driver Ben and passenger Tom have won 14 TT races and eclipsed the outright Sidecar lap record on multiple occasions.
The 2023 event was a banner one for the Birchalls, who smashed the 120mph barrier twice during race week – setting the record now at 120.645mph – and doing so on the 100th anniversary of Sidecars at the TT.
Tom Birchall retires as the most successful Sidecar passenger ever at the TT as well as a four-time world champion.
“It’s not been an easy decision to make by any means,” Tom Birchall said.
“But it’s now 20 years since I first got in an outfit alongside Ben and it’s 10 years since we took our first TT win – something we dreamt about as kids when we used to come on family holidays to watch.
Source: Autosport