Haas believes thinner tread tyres are hurting race form

The American-owned outfit is still chasing answers as to why its strong single-lap pace in qualifying falls away in the races – when it has difficulties keeping its tyres in the right operating window.
Romain Grosjean thinks that the thinner tread that Pirelli is using throughout this season – which it ran at three events last year – may be the answer.
"We think that's what's hurting ...Keep reading