Pirelli reveals cause of tyre failures in Azerbaijan GP

Pirelli's investigation into the tyre failures suffered in Baku by Aston Martin's Lance Stroll and Red Bull's Max... The post Pirelli reveals cause of tyre failures in Azerbaijan GP appeared first on F1i.com.

Pirelli reveals cause of tyre failures in Azerbaijan GP

Pirelli's investigation into the tyre failures suffered in Baku by Aston Martin's Lance Stroll and Red Bull's Max Verstappen concluded that there was no production or quality defect on the tyres.

Both Stroll and Verstappen suffered left-rear blowouts, with the Canadian's failure occurring after 30 laps while the Dutchman's rupture took place just five laps from the checkered while the Red Bull driver was comfortably leading the race.

A post-race examination of Lewis Hamilton's tyres revealed a deep cut in the left-rear rubber which led to speculation that the failures had perhaps been caused by debris.

But Pirelli's investigation has ruled out that theory.

"Pirelli, in conjunction with the FIA, has completed the analysis of the left-rear tyres involved in the incidents that affected Lance Stroll and Max Verstappen during the recent Azerbaijan Grand Prix," said Pirelli in a statement released on Tuesday evening.

"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."

In the aftermath of the Baku crashed, both Red Bull and Aston Martin stated that they ran their tyres to the minimum pressures mandated by Pirelli, a fact that Red Bull repeated on Tuesday.

"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," said Red Bull.

"We adhered to Pirelli’s tyre parameters at all times and will continue to follow their guidance."

Nevertheless, in agreement with the FIA, Pirelli will rely on new pressure and tyre blanket protocols in the future.

"As a result of this analysis, Pirelli have submitted their report to the FIA and the Teams," said F1's tyre supplier.

"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."

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Mercedes needs a car that 'both drivers can push' – Wolff

Toto Wolff says Mercedes needs to field a car that both Lewis Hamilton and Valtteri Bottas can "confidently"... The post Mercedes needs a car that 'both drivers can push' – Wolff appeared first on F1i.com.

Mercedes needs a car that 'both drivers can push' – Wolff

Toto Wolff says Mercedes needs to field a car that both Lewis Hamilton and Valtteri Bottas can "confidently" push to the limit.

Mercedes heads to the French Grand Prix on the back of two disappointing displays that yielded just seven points relative to the 62-point haul enjoyed by championship rival Red Bull.

While Monaco and Baku's street circuits were venues that did not cater to the Brackley squad's W12, at least one Mercedes driver managed to perform reasonably at each track.

But Wolff, who qualified his team's recent performances as "unacceptable", insists the German outfit will only remain a championship contender if it can supply a car that performs well in the hands of both its drivers.

"We come off the back of two street circuits unsuited to our car, two circuits we knew would be difficult for us, and we were disappointed to lose a podium finish and a victory through our own mistakes," Wolff said in Mercedes' French Grand Prix preview.

"That frustration reflects the high standards we hold ourselves to, and it is what drives us forward.

©Mercedes

"In Monaco and Baku we put the W12 in a window where only one of our drivers found the confidence to unlock the performance of the car - Valtteri in Monaco and Lewis in Baku.

"In such a close, intense title fight, we need to deliver a car at each race which both our drivers can confidently push to its limits."

  • Read also: Wolff wrong to 'roast' Mercedes team in public - Horner

Wolff believes that F1's return to a traditional track next weekend coupled with Mercedes' past performances at Paul Ricard bode well for the team's prospects.

"The French Grand Prix means returning to a more traditional circuit and hopefully, better fortunes for us," commented the Austrian.

"It is a track we've gone well at in the past and, with a wide range of corner speeds that will test the car in every aspect, it's an interesting challenge for us to tackle.

"We're six races into the season and there's still a long way to go. It's looking very close at the front and we're not expecting that to change anytime soon.

"We'll be looking to turn our learnings from recent weeks into performance and to deliver a much stronger weekend with both cars."

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