Paul Hembree: it is difficult to assess the effectiveness of Jerez in rubber

The head of Pirelli Motorsport Floor Chambre answered today on Twitter to fans ' questions and said that the characteristics of the track in Jerez are not suitable for evaluation of the new rubber. . .

Paul Hembry: "In Jerez abrasive asphalt, so the tires wear out quickly and to evaluate their effectiveness very difficult. Previously, it was a good test site for testing tires, but now he too is very different from the usual tracks of the championship.

Teams prefer to conduct the tests in Jerez because of the good weather in February in this region of Europe before some went for this in South Africa. When selecting tracks for testing our opinion is not taken into account".

One of the questions concerned the Grand Prix of Russia and possible low temperatures in the days of the stage. "We will prepare studded tires," joked Paul Hembry.