Pirelli suggests Baku F1 tyre blowouts may be caused by debris

Pirelli Formula 1 boss Mario Isola believes that the left rear tyre failures experienced by Max Verstappen and Lance Stroll in the Azerbaijan GP could have been caused by debris.

Pirelli suggests Baku F1 tyre blowouts may be caused by debris

Stroll and Verstappen both suffered huge accidents on the straight after experiencing what appeared to be similar failures while running Pirelli's C3 tyre, which was the hard compound in Baku.

Isola said a cut found on the left rear that came off Lewis Hamilton's car after the red flag indicated that a similar issue may have affected the other drivers, but in the world champion's case it had not compromised the construction.

Isola said that sudden deflations can often point to punctures caused by debris, as a structural failure would give more advanced warning.

However, Isola stressed that Pirelli hasn't ruled out anything yet, and that an investigation is already under way.

"Obviously we need to make an investigation, that is clear," Isola told Autosport. "What I have collected so far are just preliminary indications. It was sudden deflation both for Lance and for Max, without any warning.

"It was on the rear left tyre, that is not the most stressed here, because it's the rear right. And the other point if we talk about wear, the most worn tyre is the front right. So it is not a matter of wear.

"Another element that is important is that we found on the rear left tyre of Lewis Hamilton, another cut, quite a big one. This was at the red flag, so in the same stint where Max crashed.

Lewis Hamilton, Mercedes W12

Lewis Hamilton, Mercedes W12

Photo by: Zak Mauger / Motorsport Images

"The cars came, they dismounted the tyres to fit a new set, we checked the used tyres, and we found a cut on the rear left.

"Luckily, this cut was not cutting the construction. And that's why he didn't lose pressure. So we have evidence of another tyre with a cut.

"The other tyres that have been used during the same thing for 30, 32, 33 laps are not showing any evidence of a potential problem. This is what I know at the moment.

"The other step is that obviously we are air freighting the tyres to Milan tomorrow to analyse them as soon as possible. And find the real motivation that can be debris, or can be anything else."

Isola said he understood why Verstappen, Stroll and other drivers had expressed obvious concerns about the failures.

"It is almost impossible to design a tyre that is able to resist to any type of debris, if it is debris. If it is not debris, we have to consider our counter actions.

"But I fully understand that drivers crashing at that speed are worried, that is clear. I'm worried aware as well.

"I believe it was debris, because they didn't have any warning that there was something strange on the car, on the suspension, on the tyre, on the brake, nothing was giving any sign of failure. And it was a sudden failure.

"So considering the rear left is not the most stressed tyre, the cut we found on Lewis's tyre and so on, these are indications that are taking us in that direction.

"But we don't want to exclude anything because as Max said, these things shouldn't happen."

shares
comments

Related video

Leclerc lost Azerbaijan GP lead to Hamilton after avoiding tree branch
Previous article

Leclerc lost Azerbaijan GP lead to Hamilton after avoiding tree branch

Next article

Haas: Mazepin's finish line swerve at Schumacher a ‘misunderstanding’

Haas: Mazepin's finish line swerve at Schumacher a ‘misunderstanding’
How departing F1 boss Brawn views F1’s new rules - and the future Plus

How departing F1 boss Brawn views F1’s new rules - and the future

Multiple-title-winning designer and team boss Ross Brawn is finally leaving Formula 1 after nearly 50 years in motorsport. But he still has plenty of insights on what’s working and what comes next, as he revealed to Autosport in a far-reaching exclusive interview in Abu Dhabi

Formula 1
Dec 2, 2022
The key F1 management call Ferrari must make to avoid more defeat Plus

The key F1 management call Ferrari must make to avoid more defeat

OPINION: Mattia Binotto’s departure from Ferrari will naturally bring a range of changes across the Formula 1 team. But how the changes shape up and the impact they could have is set to be dictated by a key direction Ferrari’s top dogs will need to pick

Formula 1
Nov 30, 2022
The difference between Mercedes’ stumble and the fall of F1 giants Plus

The difference between Mercedes’ stumble and the fall of F1 giants

OPINION: Mercedes endured its worst season of the hybrid Formula 1 era, but was mercifully spared its first winless campaign in over a decade late on. It has owned up to the mistakes it made which led to its troubled W13. And while its task to return to title-challenging contention is not small, its 2022 season seems more like a blip than the beginning of a downward spiral.

Formula 1
Nov 29, 2022
The physical focus bringing out the best of an F1 midfield star Plus

The physical focus bringing out the best of an F1 midfield star

Esteban Ocon likes to point out he’s the first driver since Lewis Hamilton to emerge from a spell as Fernando Alonso’s team-mate with a superior overall points record. While some may disagree, as LUKE SMITH discovered, the 2021 Hungarian GP winner reckons it’s not just luck which has made him France’s pre-eminent Formula 1 driver of the moment…

Formula 1
Nov 28, 2022
How Red Bull's dynamic leader shaped its F1 philosophy Plus

How Red Bull's dynamic leader shaped its F1 philosophy

The death of Dietrich Mateschitz last month has not only deprived Red Bull of its visionary founder, it has shorn Formula 1 of one of its most influential benefactors. Mateschitz himself was famously media-shy, preferring to let the brand do the talking on his behalf. And, while it’s now normal to speak of Red Bull F1 titles and champions made, Mateschitz never assumed it would be easy or even possible – as ANTHONY ROWLINSON discovered during this previously unpublished interview from 2006…

Formula 1
Nov 27, 2022
Can Mercedes break Formula 1's cycle of doom? Plus

Can Mercedes break Formula 1's cycle of doom?

OPINION: Teams that have dominated for long periods throughout Formula 1's history often take years to get back to the top of the tree once they've slipped down. But it remains to be seen whether the same will happen to Mercedes after a challenging 2022 season

Formula 1
Nov 24, 2022
What hurt Perez most in his ill-fated fight for second in Abu Dhabi Plus

What hurt Perez most in his ill-fated fight for second in Abu Dhabi

Arguably the favourite in the battle to finish second best in 2022's Formula 1 standings, Sergio Perez's two-stop strategy at Abu Dhabi couldn't take him ahead of Charles Leclerc when the music stopped - and several key factors ultimately precluded him from the much-coveted runner-up spot

Formula 1
Nov 23, 2022
The Abu Dhabi momentum that can propel Leclerc and Ferrari to F1 2023 success Plus

The Abu Dhabi momentum that can propel Leclerc and Ferrari to F1 2023 success

OPINION: Charles Leclerc achieved his target of sealing runner-up in the 2022 world championship with a masterful drive behind Max Verstappen in Abu Dhabi. And that race contained key elements that may help him, and Ferrari, go one better in Formula 1 2023

Formula 1
Nov 22, 2022