Pirelli has abandoned plans to change the tyres used this season after failing to secure the teams' agreement. The Italian company wanted to change the construction of the rear tyres following a series of failures this year. But the change was controversial and was blocked by some teams, who feared it would affect their competitiveness. Pirelli now believes it has solved the problem by strengthening the adhesive that secures the rubber to the carcass. Guide to the tyres in Formula 1 Pirelli had been concerned by a series of delaminations in early races, including one that broke the rear suspension of Lewis Hamilton's Mercedes in practice in Bahrain. It said there was no safety issue but...
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