When Jos Verstappen complained about differences between his sets of tyres in qualifying for the eighth round of the A1 Grand Prix series at Sentul, many would have put it down to a race driver finding excuses for a poor performance, but the Dutchman apparently had grounds for his complaint.

Having won the feature race in Durban a fortnight ago, much had been expected of Verstappen in Indonesia, particularly after some strong performances in wet practice, but the Team Netherlands car struggled to qualifying 13th, with Verstappen suggesting that his various sets of tyres were mismatched.

That hunch has now been confirmed by the technical delegates of series' tyre manufacturer Cooper.

After qualifying, the Dutch team's own analysis of the tyres indicated that the left front tyre Verstappen had used during his second run was clearly harder than the other tyres, and the experts at Cooper, after their own checks, eventually came to the same conclusion.

After consulting with the race stewards, the rogue tyres were changed, ensuring that the team will have access to equal specification tyres for Sunday's two races.



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