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Monday, June 16, 2025

how tire selections and graining might shake up the Montreal race


The Canadian GP guarantees to be an unpredictable occasion. It’s often filled with uncertainties as a consequence of altering climate situations all through the weekend. This 12 months, nevertheless, regardless of the forecasts remaining pretty secure to this point and anticipated to remain that manner tomorrow, the very delicate tire nomination on a low-grip and customarily soiled monitor will increase the chance of graining.

A phenomenon that affected all the highest groups throughout Friday’s race tempo simulations. Essentially the most affected was Ferrari, which might solely run with Lewis Hamilton as a consequence of Charles Leclerc’s absence following his FP1 crash. Earlier than sharing our ideas, let’s overview the recommendation Pirelli gave to the groups after qualifying.

Pirelli’s recommendation – Circuit Gilles Villeneuve – 70 laps
The primary subject is certainly graining and using C4 and C5 compounds in race mode. Mario Isola, Pirelli motorsport director, was very clear and concise: “Extending the 2025 compound vary is creating a wide range of approaches amongst groups and drivers in tire utilization all through the weekend, which can mirror on the race. From a technique perspective, we expect a two-stop stays probably the most believable choice, favoring Medium and Onerous tires. The one-stop technique is theoretically legitimate however unlikely to repay, contemplating overtaking is feasible right here and the time misplaced within the pit lane for tire modifications is sort of restricted (round 18 seconds),” in response to the assertion from the Pirelli crew.

Graining and brief stops might open the door to a three-stop state of affairs
It’s no secret that the C6 will not be probably the most appropriate tire for the race. The brand new Pirelli compound, on any such circuit—as seen already at Imola—doesn’t make a distinction. In qualifying it’s generally even ignored and can doubtless be much more so through the race.

The GP opens as much as varied methods, largely relying on the remaining tire units accessible to the drivers. We agree with Pirelli that the quickest technique, at the least on paper, can be a two-stop plan like Medium-Medium-Onerous or Onerous-Onerous-Medium. It should be famous that the C5, the yellow compound this 12 months, continues to be very delicate and, as seen already on Friday (race tempo knowledge), suffers loads from graining.

If drivers can handle stints of about 20 laps on the C5, then the M-M-H technique turns into doable; in any other case, if degradation is excessive and an early pit cease is important, they may swap to M-H-H or, in the event that they don’t have two units of C4, change plans in the direction of a three-stop technique doubtless involving the Delicate tire.

Utilizing the Delicate C6, in our opinion, can be extra a matter of necessity (as a consequence of shortages of different compounds) reasonably than efficiency. We consider that these beginning on Delicate have both already dedicated to a three-stop or wish to attempt to achieve a bonus with an early undercut, hoping to choose up positions whereas operating on Onerous tires in clear air. These beginning on Delicate will doubtless go S-H-H or three stops.

If pressured to make use of Delicate, we advocate utilizing it within the closing stint. The extra rubbered-in monitor will assist handle graining higher. Given qualifying efficiency, nevertheless, we don’t consider the C6 can supply a constant efficiency benefit over the C5. Once more, its use can be extra out of necessity.

For these with a scarcity of Medium and Onerous tires—just one set of every accessible—a two-stop technique together with all three compounds is feasible. Even in that case, the most effective method could be to make use of Delicate within the final section of the race.

If graining is excessive, we might see two eventualities the place each undercuts and overcuts might be very efficient. Pitting early permits gaining monitor place over drivers on worn tires initially, however these pitting late may achieve a bonus over those that modified tires too early.

Abstract
The 2-stop technique is on paper the most suitable choice, however because the pit cease time is pretty brief (18 seconds), three stops might be a really fascinating different, particularly if graining is extreme. In Canada, potential security vehicles should even be thought of, as a Security Automotive deployment is at all times doubtless. The groups will have to be adept at capitalizing on each alternative, particularly utilizing a free pit cease to realize a bonus.

Sofia Bianchi

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