After discussion with the F1 teams, Pirelli will change the compound of its "hard" slick tires. This comes as a result of both the drivers and teams being unhappy with the changes for 2013 in the hardest tire. The change effectively reverts back to last year's compounds, which is an unusual step for Pirelli but it's all in an effort to keep the racing competitive. The change over will occur from the Spanish round.
Pirelli Motorsport Director, Paul Hembery explained the change: "After evaluating tire performance over the balance of the first four races, we took the decision - in consultation with all the teams - to change the hard compound from Spain onwards, as we did in Barcelona two years ago when we also introduced a new hard tire for the rest of the season. This latest version of the hard compound is much closer to the 2012 tire, with the aim of giving the teams more opportunity to run a wider range of strategies in combination with the other compounds, which remain unchanged."