Rockstar Energy Suzuki Europe's Harri Kullas continued his path of preparation and progression towards the 2012 FIM Motocross World Championship on the factory-backed RM-Z250 by taking a hard-won fourth position in the MX2 class at the Hawkstone Park International in England today.

The 20-year-old Finn collected his overall ranking through the rough and demanding Shropshire sand thanks to results of seventh and third positions in the two motos against fellow 250cc four-stroke opposition; plus - during a hard day's work - an encouraging sixth in the Superfinal in what was a mix of MX1 and MX2 competitors and a decent percentage of Grand Prix regulars.

"The bike was working really well today but I just struggled with arm-pump pretty much from the first race until the last," he said. "I had a bad start in the first moto but the second was much better and I felt quite pleased about that. Sixth in the last race was OK. We are getting there!"

Team-mate Petar Petrov elected not to compete in Britain in order to allow his injured finger - sustained in France at the Valence International last week - time to heal. The Bulgarian is hoping to join Kullas when the team next rolls into a race paddock for the Frankenbach International in Germany in a fortnight.