There were no deficiencies in quality or production, nor signs of fatigue and stratification. ”This was the conclusion of an investigation by Pirelli, the supplier of all tires in Formula 1, after two cases of tyre failures at the GP of Azerbaijan.
Actors in the case of flat failures in the race in Baku were Lance Stroll and Max Verstappen, drivers of Aston Martin and Red Bull. Stroll's rear left tire burst in the 31st lap of the race while passing the start-finish plane, and a Safety car came out on the track after the incident.
Max Verstappen had to give up in the 47th lap for the same reason. A burst rear tire caused a crash into the wall with the front of the car. Both drivers passed unharmed. Immediately after these incidents, Pirelli, as the manufacturer of the disputed tires, blamed the cracks on the track for the cracks.
But on Tuesday night, the Italian tire manufacturer released the results of an analysis they conducted after the race. “This analysis also took in the tires 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,” it said.
“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”.
Pirelli handed over his report to all the teams just like to the FIA governing body. In addition, a new set of protocols has been released that will take effect this weekend at the race in France. “As a result of this analysis, Pirelli have submitted their report to the FIA and the Teams.
The FIA and Pirelli have agreed a new set of the protocols, including an upgraded technical directive already distributed, for monitoring operating conditions during a race weekend and they will consider any other appropriate actions”.
- Pirelli added Shortly after Pirelli's announcement, Red Bull's reaction arrived. "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," the Red Bull statement read.
"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." - was a statement from Red Bull