Christian Iddon has taken top spot from Shane Byrne on Friday practice at Silverstone as the MCE British Superbike Showdown decider hots up ahead of the triple-header.

The Tyco BMW rider made the most of the wet conditions to go fastest after a brief challenge from morning timesheet-topper Byrne. FP2 was delayed by 10 minutes after a quick but heavy thunderstorm soaked the Silverstone circuit which forced a second wet free practice.

Iddon made the early running with a series of fastest laps before FP1 timesheet-topper Byrne battled back with a 2m 27.625s to set the standard to beat with 15 minutes remaining.

But in the closing stages Iddon battled back to regain the top spot honours with a 2m 26.104 to stretch clear of the defending BSB champion by over 1.5s.

Despite a small fall at Abbey Josh Brookes bounced back to go third in FP2 with a late lap on the Anvil Hire Yamaha, while Tommy Bridewell also enjoyed a late improvement to go fourth for Team WD-40 Kawasaki.

Leon Haslam looked set to challenge for the fastest time but tipped off on his final flying lap at Luffield which restrained the JG Speedfit Kawasaki rider to fifth place on the FP2 timesheet.

Michael Laverty, a winner at Silverstone last year, produced an impressive return to form in sixth for McAMS Yamaha ahead of Gearlink Kawasaki’s James Westmoreland.

BSB Showdown challenger Jake Dixon (RAF Reserves Kawasaki) jumped to eighth late on ahead of James Ellison (McAMS Yamaha) as John Hopkins completed the top ten on the Moto Rapido Ducati.

The remaining top six contenders slotted in behind Hopkins with Peter Hickman 11th, Jason O’Halloran 12th and Luke Mossey 13th.