Two hidden factors that could decide the F1 Barcelona GP

Whereas the primary months of 2026 have been dominated by discussions about energy items and vitality administration, a special subject has taken centre stage in Barcelona: tyres. Provider Pirelli says it’s not essentially in search of that type of consideration, though given the situations it’s unavoidable.

The Barcelona Grand Prix is the most well liked F1 weekend of the 2026 season thus far, with monitor temperatures exceeding 50 levels Celsius on each Friday and Saturday. Add to that the truth that Pirelli has not introduced the toughest compounds in its vary, however as an alternative a step softer (C2, C3 and C4), and it turns into clear that tyre degradation ranges are extraordinarily excessive.

That already meant the mushy and even the medium compound have been, in Pirelli’s phrases, “one-lap tyres” throughout qualifying. For the race, nevertheless, managing the extreme degradation will turn into a vital issue.

“We’ve got seen excessive degree of degradation figures, as much as two or three tenths, which is kind of an enormous quantity,” Pirelli chief engineer Simone Berra defined. “That is primarily because of the monitor traits, roughness of the asphalt, vitality of the structure, and in addition the excessive monitor temperatures.”

Though the warmth is logically the primary issue, the asphalt on the Circuit de Barcelona-Catalunya can be among the many roughest on all the calendar. “The extent of macro roughness is excessive in comparison with different circuits. It’s the second within the rating of macro roughness of the season, after Bahrain. And clearly, it is a issue.”

It presents a very totally different problem to Montreal and Monaco, the place groups struggled merely to get the tyres into the right working window after which preserve them there.

“It is not likely frequent to have these type of values. For this circuit, we’ve seen this degree of degradation in some instances, however that was with the previous product, the previous automotive. So, for this 12 months’s automotive, it is the primary time, additionally for this sort of product,” Berra stated, referring to Pirelli’s 2026 tyres.

“I do know that the groups will attempt to discover a approach to, as an instance, preserve the temperatures beneath management. That is one thing that they’ll strive. Not a simple one, however for positive the carry and coast and energy administration may even assist them with the tyre administration.”

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George Russell, Mercedes

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„Kill understeer“ or defend the rears? Key variations between groups

In that regard, there are notable variations between vehicles and driving types. Some are higher at bringing tyres into the working window in situations similar to Montreal, whereas others excel at maintaining them alive in scorching situations – an space the place McLaren has historically been robust in recent times. In accordance with Andrea Stella, nevertheless, that’s now not the case.

Pirelli explains that there are two further components that would play a significant position and are maybe much less seen to the bare eye: differing set-up decisions and rim designs.

Relating to the previous, Pirelli sees appreciable variation in Barcelona. Some groups have taken extra aggressive steps to cut back understeer for qualifying. That has helped one-lap tempo, however might create rear tyre points throughout the race.

“It is the selection of the stability, and in addition is dependent upon how the groups determined to strategy qualifying after which the race with the identical set-up”, Pirelli’s head of motorsport Dario Marrafuschi stated.

“This monitor is disturbing for the entrance axle by way of sliding, so it’s a type of put on and degradation, fixed degradation of the entrance axle and overheating of the rear. It is dependent upon how the groups selected to strategy qualifying with the set-up, relying in the event that they determined to kill the understeer throughout qualifying to have a very good beginning place. However on this case they’ll endure within the scorching situations throughout the race due to the rear stability.

“Or in the event that they protected the rear axle at this time in imaginative and prescient of a extra constant race. I feel that is going to be a precious and thrilling variable to see within the fights on monitor.”

Arvid Lindblad, Racing Bulls

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Completely different rim designs a much bigger think about Barcelona

The second issue is, as talked about, rim design. Till 2025, groups used a standardised provider rim, however from this season onward groups have been allowed to develop their very own open-source designs. In accordance with Pirelli, there are main variations between the assorted approaches on the grid.

“It is fairly a big variation. And likewise the groups are bringing new rim specs throughout the season as a result of they know that they will by some means work round with rims and attempt to affect tyre efficiency”, Berra defined.

“What we have seen this 12 months is that typically stabilised situations are a lot decrease than prior to now. It’s because the edges are principally cooling the entire wheel and the tyre itself. That is producing fairly an enormous distinction, not solely on the rim geometry, but in addition in stabilising fairly excessive with the temperatures and pressures.

“Another groups are stabilising very low. There are fully totally different approaches. And I feel particularly right here this can have a huge impact. The groups which have labored to chill down the tyres and the rim so much can have far more profit than different groups.”

In accordance with Pirelli, some groups’ designs are higher suited to situations similar to Montreal, the place decrease temperatures made it tough to get the tyres into the proper window. Different designs focus extra on maintaining tyres as cool as potential in extraordinarily scorching situations, and that would present a big benefit within the warmth of Barcelona.

One may assume groups might merely swap between totally different rim designs relying on the monitor and situations, however Pirelli says it’s not that simple.

Lando Norris, McLaren

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“No, they can’t swap for only one weekend as a result of for us it is tough to handle totally different rim specs”, Berra replied. “They’ll begin the season with one rim specification and in some unspecified time in the future in the event that they resolve to alter, they will swap to a different rim. In any other case it is not potential.

“However for positive they will develop one thing affecting the tyre behaviour. Typically I do know that the FIA is working to keep away from that the groups are utilizing the rim to actually settle down the tyre as a result of that is not the aim of the rim itself. So there are some implications within the laws and all the things ought to be accredited earlier than introducing a brand new rim specification.”

In actuality, groups should notify each Pirelli and the FIA earlier than introducing a brand new rim design. The drawings should be submitted, after which Pirelli should additionally check the design earlier than approval is granted. The method takes a number of weeks, which means a brand new design can’t be launched in a single day.

There isn’t a restrict on the variety of rim designs a staff can introduce throughout a season, however as a result of such developments fall beneath the finances cap, monetary actuality successfully determines the restrict.

Two-stop or three-stop technique for the Barcelona GP?

Regardless, tyre administration is about to be an enormous problem for each staff on the grid. Drivers stated after qualifying that they anticipate “no less than two pitstops”, and Pirelli agrees.

“We anticipate no less than a two-stop technique – no less than two stops. In concept, we anticipate that the most effective technique is medium-hard-hard, additionally as a result of groups have saved the exhausting tyres and we expect they most likely wished to have these tyres as an choice for the race”, Marrafuschi stated.

Gabriel Bortoleto, Audi F1 Workforce

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“The frequent sense allow us to suppose that the 2 stops with medium-hard-hard may very well be an choice with a primary cease between 15 and 21 and the second between 38 and 44.”

One attention-grabbing element is that Pirelli’s most well-liked technique requires two recent units of exhausting tyres. Max Verstappen, nevertheless, now not has that choice after turning into the one driver to run the exhausting compound on Friday.

Requested which of the remaining options could be greatest, Marrafuschi continued: “The second choice we foresee may very well be medium-hard-soft. On this case, the second cease could be in direction of the final a part of the race between lap 45 and 51, with the primary cease between 19 and 25. There may be one other chance, and this actually must be evaluated throughout the race additionally in response to the site visitors or any potential race administration by way of security vehicles, the three-stop technique.”

For somebody like Verstappen, that choice might on paper even be faster than a two-stop technique, however Pirelli additionally issued a warning.

“It’s somewhat bit sooner, however it’s a must to take site visitors under consideration”, Berra added to Marrafuschi’s rationalization.

“And that’s not a matter simply of overtaking. You possibly can most likely overtake ultimately, as a result of when you have a delta tyre efficiency, you may overtake. However the level is that you just danger to overheat the tyres extra, to attempt to push and overtake the automotive in entrance. So, you danger to finish up with increased degradation ranges, so it is not very efficient ultimately.”

No matter which methods finally emerge, the Barcelona GP guarantees to be the primary race of this season – and due to this fact of this new period – through which tyre administration really turns into the decisive issue.

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