Now this will make a lot of noise....
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The test rides in Barcelona were a warning shot. After the endurance races, some cars came back with bubbles on the rear tire. Mercedes had the biggest problems. Pirelli pushes it on the new asphalt of Barcelona. "He's black, saves the heat. Because all bumps have been smoothed out, the cars can drive lower and produce even more grip than usual. This can lead to overheating under continuous load and the low wear of the rubbers in the fast corners ", Pirelli sports director Mario Isola explains.
But there is another truth. Pirelli has designed its compounds one level softer than 2017. This lowers the temperature range in which the tires work. Therefore, the tendency to overheat starts earlier than last year. What slows the cars in the race and additionally contributes to the Überholproblematik.
Rubber layer thinner by 0.4 millimeters
Pirelli followed the request of Mercedes. "We would have done that too. That's how we were in Monza and Spa in 2011 and 2012, "says Isola. In Barcelona, Silverstone and Paul Ricard, the rubber layer on the tire is reduced by 0.4 millimeters. That reduces the weight of a set of tires by at least one kilogram. The teams have to fill the gift with ballast.Mercedes suggested Pirelli to reduce the rubber layer on the critical racetracks. A thinner tread means less movement in the rubber and thus less risk of overheating.On the 3 mentioned routes the asphalt was renewed. "It's the same guy as in Barcelona," says Isola. Pirelli would actually have needed 70 percent approval for a short term change. But here is the security argument. The competition reacted sourly. "We have no problems with bubbles," says McLaren.
Red Bull reluctantly relinquishes a competitive advantage: "Our car handles the tires more gently than the Mercedes," explains Daniel Ricciardo. A team boss rumbles: "Why should we change the tires if Mercedes has a problem? You have to see for yourself how they manage the tires. "
Edited by xtremeclock, 06 April 2018 - 20:29.