For those events, Pirelli will use tyres with a slightly thinner tread in an effort to combat potential overheating issues, in the light of information learned in Barcelona testing.
The tread for the three races will be 0.4mm thinner, but Pirelli is confident that it won’t impact performance.
There is also a weight reduction of around 1kg per set, which teams will have to take into account when they ballast their cars.
“We made a request to the FIA to have a slightly different tread thickness for three races,” said Pirelli F1 boss Mario Isola. “That’s Barcelona, Silverstone and Paul Ricard.
"The reason for this request is that in general the new tarmac has a lot of grip, low wear, and low degradation.
“With a lot of grip, the lap time is improving a lot. We saw the lap times in Barcelona during the pre-season test was three seconds quicker than last year.
"But the point is that we keep a lot of rubber on the tyre, because with low wear, the tread is there, we are not wearing the tyre. And this means we have high temperatures in the compound.
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