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Pirelli modified tires: thinner tread in three races

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Pirelli modified tires
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D he test drives in Barcelona were a warning shot. After the endurance runs, some cars came back with blisters on the rear tires. Mercedes had the biggest problems. Pirelli is pushing it on the new asphalt of Barcelona. “It's black, saves the heat. Because all the bumps have been ironed out, the cars can go deeper and produce even more grip than usual. This can lead to overheating in the fast corners with constant load and the low wear of the rubber, 'explains Pirelli sports director Mario Isola.

Rubber layer 0.4 millimeters thinner

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Mercedes will be happy about the reduction in the tread.

Mercedes suggested to Pirelli to reduce the rubber layer on the critical racetracks. A thinner tread means less movement in the rubber and thus a lower risk of overheating.

Pirelli followed Mercedes' request. “We would have done that on our own initiative. We did the same thing in Monza and Spa in 2011 and 2012, ”Isola weighs down concerns about fairness. In Barcelona, ​​Silverstone and Paul Ricard, the rubber layer on the tires is reduced by 0.4 millimeters. That reduces the weight of a set of tires by one kilogram. The teams have to fill up the present with ballast.

The asphalt was renewed on the 3 routes mentioned. “It's the same guy as in Barcelona,” says Isola. Pirelli would haveactually needed 70 percent approval for a short-term change. But the security argument counts here. The competition reacted sourly. “We have no problems with blisters,” says McLaren. Force India Technical Director Andy Green was amazed: 'Nobody spoke to us.'

Red Bull reluctantly forego a competitive advantage: 'Our car is gentler with the tires than the Mercedes,' explains Daniel Ricciardo. A team boss rumbled: “Why should we change the tires when Mercedes has a problem? You have to see how you manage the tires yourself. ”

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