TT sidecar crew Ben Birchall and Patrick Rosney have parted ways after a season together.

Fourteen-time TT winner Birchall teamed up with regular top-10 finisher Rosney in April after one year alongside Kevin Rousseau, having previously been ever-present with his brother Tom around the Mountain Course before the latter man’s retirement.

Birchall and Rosney enjoyed a successful TT this year, racking up a brace of second-place finishes in the two sidecar races aboard their Hager/Wyckham Blackwell LCR Honda, behind Jurby brothers Ryan and Callum Crowe.

Now though, Birchall and Rosney have decided to go their separate ways ahead of the 2026 three-wheel campaign, with the former now set to partner another TT regular in Mark Wilkes.

In a post on social media on Friday, Birchall paid tribute to his outgoing passenger, saying: ‘A huge thanks to Paddy for an awesome 2025 season. Your commitment and talent has been amazing - the results speak for themselves.

‘With a mutual difference in commitments for 2026, Birchall Racing will be heading in a new direction next season. Big appreciation to Paddy for his support and professionalism throughout this process.

‘It’s been a blast, Paddy - wishing you all the best for what’s next.’

- Birchall and Wilkes had their first outing over the weekend when competing in the final round of the 2025 British Sidecar Championship at Brands Hatch.

After qualifying in sixth place, the pair improved to finish fifth in the opening race of the weekend, which was won by former island resident Harry Payne and the aforementioned Rousseau.

And it was a similar story in the second race as they once again bettered their previous outing, claiming a top-four finish and setting a fastest lap of one minute 33.110 seconds. Payne and Rousseau once again came out on top to complete a weekend double.

The overall championship was won by the pairing of Lewis Blackstock and Oscar Lawrence who finished eighth in this year’s opening Sidecar TT race.