The Formula One teams will get the chance to sample the definitive specification of Pirelli’s new tyres for the first time this year, as the 2012 Formula One season gets underway at Jerez in Spain this week.During a four-day test at the Andalusian circuit, from Tuesday to Friday (7-10 February) each car will have 25 sets of Pirelli’s new soft, medium and hard compounds available, along with the wet tyres if needed.

Teams are allowed a maximum of 100 sets of tyres per car each year for testing purposes, and they are permitted to choose the compounds they would like to test within their allowance. None of the teams have nominated the supersoft compound for Jerez: the only compound to remain unchanged from 2011.

Experimental compounds for the 2012 tyres were tried out during some of the free practice sessions last year, as well as at the young driver test following the Abu Dhabi Grand Prix. However, the regular drivers now have the opportunity to test the new compounds together with the new profiles for the tyres, which this year are much ‘squarer’ in order to provide a greater contact patch and deliver a longer period of peak performance, while maintaining an overall lifespan in the region of 100 kilometres.

Once more the teams will start from scratch, as all the compounds apart from the supersoft are new, with more visible colour markings. In the unlikely event that it rains in the south of Spain next week, the drivers will also get to try out the new Cinturato rubber: the designation for the intermediate and full wet tyres – which echo the name of Pirelli’s first Formula One tyres from the 1950s.

The 4.43-kilometre Jerez circuit has hosted both the Spanish and European Grands Prix previously, and it is a popular venue for Formula One testing due to its technical configuration and year-round warm weather. It was one of the venues that Pirelli used for testing in 2010, when the company was building up to its return to Formula One.

Source: http://www.pirelli.com/corporate/en/press/2012/02/07/new-pirelli-formula-one-tyres-face-their-first-test/