It has been a strange weekend so far in Barcelona, with changing conditions once again the culprit. First, there was the heavy rain on Wednesday and Thursday, which left the track coated in fine sand and dust blown in from the Sahara. Then there is the rapidly changing weather: temperatures have been rising rapidly every day, with track temperatures 10°C higher on Saturday than they had been on Friday, with a similar increase expected again on Sunday. Track temperatures for the race are expected to be well over 50°C, spelling disaster for grip levels.
Completing the trifecta of problems, the Moto2 race is likely to leave a thick layer of Dunlop rubber on the surface, which will make grip levels even more unpredictable. "After Moto2, it will be worse," Michelin's Two Wheel Motorsports manager Piero Taramasso predicted on Saturday evening. "Many times this problem happens when you have aggressive asphalt, which is the case here, and on a track in very hot conditions, which is also the case. So I think that tomorrow after the Moto2 race, the conditions will be not as good as we would like."
Another day of track action and the running of the Moto2 race may help sweep some of the dust and sand from the track, but the rubber the Moto2 bikes leave behind in the forecast hot and humid conditions will leave the surface greasy and without grip. "The track will be cleaner, but without Michelin rubber on the track," Taramasso said. One step forward, two steps back.