Casey Stoner left Monday's Mugello MotoGP test having set the pace with a record-breaking lap at the Repsol Honda team's last non-grand prix track session with the 800cc RC212V.

From now on, whenever HRC team-mates Stoner, Dani Pedrosa and Andrea Dovizioso test - including during the next official outing at Brno in mid-August - it will be with next year's 1000cc machine.

The trio made use of the extra track time, just one day after the Italian Grand Prix, to try a new swing arm and then followed their own testing schedules.

Stoner, who led for 17 of the 23 race laps on Sunday - before tyre pressure problems saw him caught and passed by Jorge Lorenzo and then Dovizioso - left the pits just 15 minutes after the track opened.

The world championship leader went on to suffer a small crash - and was reportedly involved in an on- and then off-track argument with rookie Karel Abraham - on his way to completing 47 laps.

Stoner set a new circuit record of 1min 47.326 on his penultimate lap, which was seven tenths faster than his pole position time on Saturday, although only 0.096sec quicker than Gresini Honda's Marco Simoncelli, who was second best at the test.

In addition to the swing arm, Stoner tested a new Bridgestone front tyre.

"This morning the track was very dirty and I had a small incident going into turn one, but nothing major," said Stoner, whose lead over Lorenzo has been reduced to 19 points. "We had a few things to test here today, a new front tyre from Bridgestone which wasn't so different to the one we are currently using, perhaps just a little more contact feeling so it could be a good direction they are working in.

"We tested a new swing arm and had positive feedback, we found more traction and some more grip delivered a little earlier so I don't need to pick up the bike so much, which could help us in a track like Sachsenring where you spend a lot of time on the edge.

"In general we didn't test so much, the bike was very similar to the race day set up, we also tried something small on the rear suspension and this was also a small step forward."

Third fastest of the eleven riders present - the factory Ducati team and both Yamaha teams chose not to attend - was Dovizioso, who was the top Italian in Sunday's race.

Dovizioso completed 66 laps and spent the day working on engine braking and the new swing arm, which he plans to use at the forthcoming German round.

"It was a very good test day," began Dovi. "I was very motivated from yesterday's result so as soon as I went on track, I rode consistently at a good pace in the mid 1'48's with used hard tyres.

"We worked on engine braking and improved the stability and then we tested a new swing arm, which gave positive feedback. I think we are going to use it in Sachsenring because with the new swing arm lap times come easier even if the bike moves more in the rear.

"I'm still not so strong with the soft tyres, but I'm very happy with my feeling of the bike. We worked on the set up of the machine and I think we will arrive in Sachsenring with a good base that we will fine tune for the characteristics of the German track, which is very different to Mugello".

The plan for Pedrosa, who made his MotoGP return from a broken collarbone at Mugello, was to combine short runs with long pauses in the garage, in order to save his strength and test new Ohlins rear shocks and other items more effectively.

Pedrosa - eighth in the grand prix - rode for 26 laps, the best of which was 1.689sec behind Stoner and good enough for sixth on the timesheets.

"It was a short but very interesting and positive test for us," said the Spaniard. "We basically wanted to use this test to improve our suspension. Unfortunately, due to the issues with my shoulder, we decided not to test the front fork as I am not able to brake on the limit, so there is no point in trying it now.

"This is the modified Ohlins fork from the Estoril test, where I was also unable to test it due to injury. However, Casey and Andrea have been using it since then and it looks like it's a big step forward, so as soon as my fitness improves, I'll try to use it also as it improves the braking, perhaps I will try it in Sachsenring during the practice sessions together with a new swing arm that I also tried today but I need to complete more laps with it make a final decision.

"We also tested two rear shocks and got positive feedback. We have good data that we can use for the coming races to give us more edge grip and also on corner entry to reduce the sharpness when I flick the bike, two aspects I'm looking to improve. That was pretty much all we tested today".

The German Grand Prix at Sachsenring takes place on July 17.