Pirelli believes Baku tyre blowouts were caused by debris

Pirelli Formula 1 boss Mario Isola believes that the left rear tyres failures experienced by Max Verstappen and Lance Stroll in the Azerbaijan GP could have been the results of cuts 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 compoun 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 Motorsport.com. "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.

"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."

Read Also:

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

Verstappen: Pirelli will blame debris for Baku F1 tyre blowouts

Previous article

Verstappen: Pirelli will blame debris for Baku F1 tyre blowouts

Next article

Haas: Mazepin move on Schumacher at finish line a ‘misunderstanding’

Haas: Mazepin move on Schumacher at finish line a ‘misunderstanding’
Load comments
How Ferrari has brought the best from F1's smooth operator Prime

How Ferrari has brought the best from F1's smooth operator

As a young boy, Carlos Sainz was schooled by his father in the special folklore surrounding Ferrari in Formula 1. Now an established grand prix ace – and a Ferrari driver to boot – Sainz opens up to BEN ANDERSON about driving for the team of his childhood hero, and of his own boyhood dreams

How Hungarian GP thriller sounded alarm bell for F1 2022 cars Prime

How Hungarian GP thriller sounded alarm bell for F1 2022 cars

OPINION: The 2021 Hungarian Grand Prix may not have been a thrill-a-minute overtaking fest, but it's a race that will live long in the memory as one of the best of the current era of Formula 1. And as Formula 1 moves to regulations in 2022 aimed at boosting overtaking, Hungary showed the balance it must strike with its new machinery as not to deny similarly tense spectacles

Was Hamilton's Hungary solo start a good or bad look for F1? Prime

Was Hamilton's Hungary solo start a good or bad look for F1?

OPINION: Different perspectives had Lewis Hamilton’s solo second standing start in Formula 1’s 2021 Hungarian Grand Prix as fabulous or farcical. But did it make the championship appear too silly for the sake of a moment of high-charged sporting drama?

Why unseen Hungary heroics could be Latifi's making Prime

Why unseen Hungary heroics could be Latifi's making

The chaotic start to the Hungarian GP set the scene for F1's less heralded drivers to make a name for themselves. Esteban Ocon did just that to win in fine style, but further down the order one driver was making his first visit to the points and - while the circumstances were fortunate - took full advantage of the chance presented to him

Formula 1
Aug 3, 2021
Hungarian Grand Prix driver ratings Prime

Hungarian Grand Prix driver ratings

This was race that showcased the best and worst of Formula 1, producing a first time winner and a memorable comeback to a podium finish. Avoiding trouble at the start and astute strategy calls were key to success, but where some drivers took full advantage, others made key errors that cost them dearly

Formula 1
Aug 2, 2021
The "heart-breaking" call that led to Ocon's Hungarian GP triumph Prime

The "heart-breaking" call that led to Ocon's Hungarian GP triumph

Set to restart the red-flagged Hungarian Grand Prix in second, Esteban Ocon had some doubts when he peeled into the pits to swap his intermediate tyres for slicks. But this "heart-breaking" call was vindicated in spectacular fashion as the Alpine driver staved off race-long pressure from Sebastian Vettel for a memorable maiden Formula 1 victory

Formula 1
Aug 2, 2021
The F1 champion who became an Indy king in his second career Prime

The F1 champion who became an Indy king in his second career

Emerson Fittipaldi’s decision to go racing with his brother led to him falling out of F1, but he bloomed again on the IndyCar scene. NIGEL ROEBUCK considers a career of two halves

Formula 1
Jul 31, 2021
Why Mercedes is pleased to be in the Hungary hunt at a 'Red Bull track' Prime

Why Mercedes is pleased to be in the Hungary hunt at a 'Red Bull track'

Mercedes ended Friday practice at the Hungaroring with a clear gap to Red Bull thanks to Valtteri Bottas’s pace in topping FP2. But there are other reasons why the Black Arrows squad feels satisfied with its progress so far at a track many Formula 1 observers reckon favours Red Bull overall...

Formula 1
Jul 30, 2021