Jenson Button has questioned Pirelli’s findings after the tyre manufacturers released their full investigation into Baku, where Max Verstappen and Lance Stroll both suffered sudden high-speed tyre blowouts at different stages during the Azerbaijan Grand Prix.
Aston Martin’s Stroll was the first to suffer a blowout, catapulting the Canadian into the wall on lap 30.
Verstappen meanwhile, was leading the way in the Red Bull, with just a handful of laps to go before he suffered a similar issue. The Dutchman hurtled into the concrete on the start/finish straight.
Formula One’s official tyre supplier initially suspected debris to be the cause of the issue, as they also found a cut in Lewis Hamilton’s tyre, however, results were officially revealed on Tuesday, ahead of the French Grand Prix.
Pirelli’s statement read: “This analysis also took in the tyres used by other cars in the race, which had the same or a higher number of laps on them compared to the ones that were damaged.
“The process established that there was no production or quality defect on any of the tyres; nor was there any sign of fatigue or delamination.
“The causes of the two left-rear tyre failures on the Aston Martin and Red Bull cars have been clearly identified.
“In each case, this was down to a circumferential break on the inner sidewall, which can be related to the running conditions of the tyre, in spite of the prescribed starting parameters (minimum pressure and maximum blanket temperature) having been followed.”
But Jenson Button, the 2009 world champion, took to Twitter and was perplexed by the findings.
“So what was the reason for the failures then?!,” Button tweeted.
“Aston Martin and Red Bull stuck to the limits given, no cuts in tyre from debris and no defects or failure from Pirelli? Voodoo magic then I guess.”
Red Bull responded immediately after Verstappen crashed out heavily from the lead of the race and the team said there was no warning of a tyre failure.
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Red Bull said: “We have worked closely with Pirelli and the FIA during their investigation into Max’s tyre failure on lap 47 of the Azerbaijan Grand Prix and can confirm that no car fault was found.
“We adhered to Pirelli’s tyre parameters at all times and will continue to follow their guidance.
“We are grateful that following the weekend’s high-speed impacts no drivers were injured.”
Aston Martin also added that they also confirmed there was no car fault that caused the tyre to fail.
“The team has always operated its tyres within the Pirelli prescribed parameters and will continue to do so,” said Aston Martin.
However, it appeared some in the F1 paddock were not satisfied with the results, which seemed to leave more questions than answers.
Verstappen scored no points in Baku, but still leads the way in the driver standings by four points over Lewis Hamilton heading to round seven in Paul Ricard.
Despite not finishing the last race, it’s Verstappen who still leads the way by four points in the driver standings over Lewis Hamilton.
Thanks to Sergio Perez’s win in Baku, Red Bull also have command of the team standings by 26 points ahead of the triple-header over the next three weeks.