Dean Harrison upped his pace in final qualifying on Friday to mark himself out as the favourite for the big-bike classes at the Isle of Man TT after a blistering 135.484mph lap.

Harrison was only four tenths of a second outside the qualifying lap record after the Honda Racing rider completed two laps on his Superstock machine in the afternoon.

The 37-year-old was also fastest in the Superbike class, lapping at 134.877mph in the penultimate session.

The five-time TT winner set the fastest lap of qualifying week on his Superstock machine. Harrison, who won both corresponding races in 2025, will line up as a hot favourite in Saturday’s scheduled opening RL360 Superstock TT race.

Most riders opted to use their Superstock machines in the final session. Michael Dunlop lapped at 131.946mph on his MD Racing BMW to place second behind Harrison.

Peter Hickman (8TEN Racing BMW) did not complete a lap in the session due to an issue with his M1000RR.

Ian Hutchinson was third fastest on the Team RST BMW, lapping at 130.7mph with Jamie Coward fourth on the Rapid Honda at 130.122mph.

placeholder image — Dean Harrison in qualifying | Iconic

The top six was completed by David Johnson (Platinum Club Kawasaki) and Magherafelt’s Paul Jordan (Jackson Racing by Prosper2 Honda), who lapped at 129.847mph and 129.833mph respectively.

Mike Browne was seventh quickest on the MD/Russell Racing Honda (129.805mph) with 23-time winner John McGuinness (Honda Racing) eighth with a speed of 129.756mph.

A handful of riders rode their Superbike machines in the final session, with Josh Brookes leading the way on the DAO Racing Honda at 132.22mph.

Manx rider Nathan Harrison (H&H Motorcycles Honda) was second fastest at 129.791mph from a standing start, with McGuinness (Honda Racing) third at 128.544mph from a standing start.

The six-lap RST Superbike race takes place on Sunday at 1:30pm.