Michelin's top rider in the Czech Republic Grand Prix, Andrea Dovizioso, has warned that the French brand must do more after a further day of disappointment during post-race testing at Brno.
As part of the post-mortem into Michelin's Czech Republic nightmare, the JiR Team Scot rider - ninth in the grand prix - spent the day analysing the behaviour of the French tyres 'in the same configuration as the race', as well as looking at new solutions brought to the test.
"We have tried different solutions front tyres, replicating the technical conditions for racing, to analyse in depth the results of yesterday, and other proposals with different compounds, profiles and carcasses," explained team technical chief Pietro Caprara.
But Dovizioso could only lap 0.238secs faster than he had in the race and was left in 15th position out of the 19 riders, almost three-seconds behind the Bridgestone-shod Ducati of Casey Stoner.
"Today was a day mainly focused on research for a better performance from our rubber. We have noted some progress but this is still not enough. We expect Michelin to work intensively to achieve the results we expect for the next race," warned the Italian.
The fastest Michelin rider on Monday was Tech 3 Yamaha's Colin Edwards, who appeared to make significant progress by setting the sixth fastest lap time, but Dovizioso wasn't impressed.
"Colin Edwards has got a good lap time, but only for three laps, which is not significant enough for us to draw any conclusions," he said. "We stayed out even longer to assess the durability of the tyres, in addition to grip. We were able also to do tests on electronics.
"At the next grand prix at Misano I hope to take a good result in front of my home crowd," concluded Dovizioso, tipped to join the presently Michelin-shod Repsol Honda Team for 2009.