Pirelli said there was a break in the inner sidewall of the tire. “The investigation showed that there was no production error or poor quality of the tyre,” the tire supplier said in a statement.
Stroll ended up in the guardrails midway through the race in a row after his Aston Martin’s left rear tire exploded at high speed. It also happened to Verstappen five laps before the end of the race, while the Dutchman seemed to be heading for victory without being threatened.
Verstappen, who retained the top spot in the World Cup standings because rival Lewis Hamilton made a blunder and also failed to score points, said he believed Pirelli was to blame.
After an investigation, the Italian manufacturer concluded that the tires in Baku meet all requirements, such as the minimum tire pressure and maximum temperature. However, while driving, a tear may form inside the tire. Pirelli does not know how this could happen.
Red Bull’s Verstappen team said in a short statement that there was nothing wrong with the Dutchman’s car.
“We have always followed all Pirelli regulations. We are grateful that no driver was injured in these high-speed crashes.”