After the winter break, the wait is lastly virtually over. Beginning tomorrow, the System 1 groups will return to the monitor in Sakhir for the one official check session earlier than the beginning of the 2025 season, which is able to happen in mid-March in Melbourne.
For the groups, which have already coated their first kilometers throughout filming days, this would be the solely alternative to correctly fine-tune their vehicles with out the same old restrictions current throughout filming days, the place, for instance, demo tires are used. Three days of testing, totaling 24 hours on monitor—from 10 AM to 2 PM and from 3 PM to 7 PM native time—will start to outline the preliminary aggressive steadiness.
In comparison with 2024, there is a crucial change to remember. Whereas final yr’s tires had been primarily a continuation of these launched in mid-2023, permitting groups to already perceive a few of their traits, this season’s tires can be completely new—not simply when it comes to compounds but in addition of their construction, which has been modified to accommodate the growing a great deal of the vehicles.
The check will even function a possibility to see the vary of tires that Pirelli has homologated for 2025 in motion. All six homologated dry-weather compounds can be accessible for the Sakhir assessments, and they are often recognized as seen within the picture. The C1 and C2 can have white markings, the C3 and C4 can have yellow markings, whereas the C5 and the brand new C6 can have pink markings. To additional differentiate them inside every group, three of those compounds won’t have aspect bands, whereas the remaining ones will.
After debuting within the 2024 Mexico and Abu Dhabi assessments, the brand new C6 can be accessible to all groups this yr. That is the softest compound of all, supposed to be used in GPs held on road circuits or tracks that generate low vitality masses. Given the traits of Bahrain’s asphalt, which could be very aggressive on tires, it’s unlikely for use in Sakhir, a lot in order that solely two groups have chosen it.
As for the opposite compounds, the C1 stays the toughest, unchanged from 2024, and continues to be similar to final yr’s model, whereas the C2 has been moved nearer to the C3, which is essentially the most versatile when it comes to steadiness. The C4 has been developed to scale back graining, as has the C5.
For the Sakhir occasion, every workforce was allowed to decide on as much as 35 units of tires, of which 30 will truly be mounted on rims to be used on monitor. Nonetheless, inside these 35 units, groups might freely allocate their choice, and an evaluation of their decisions reveals some fascinating insights.
Traditionally, Bahrain is a really demanding circuit for tires resulting from its aggressive asphalt, to the purpose that the three hardest compounds are historically chosen for the Grand Prix. Nonetheless, the Sakhir assessments additionally function preparation for the championship, which is why the C3, essentially the most “intermediate” compound within the vary and the one almost certainly for use all through the season, will even be essentially the most utilized.
Mercedes is the workforce that has chosen essentially the most C3 units, with 27, whereas Williams sits on the reverse excessive with solely 15 units of this compound. These two groups change locations in terms of the C2: Carlos Sainz and Alexander Albon’s workforce has chosen 12 units, specializing in the tougher tires, whereas George Russell and Kimi Antonelli can have solely two.
Talking of Mercedes, together with Ferrari, it’s the high workforce that has favored the softer compounds essentially the most. The Maranello squad will use solely three units of C1 and, notably, simply 4 units of C2, as a substitute prioritizing the C3. Curiously, Ferrari has additionally chosen to carry 5 units of C4 and, together with Williams, is the one workforce to have chosen one set every of C5 and C6. This allocation means that Ferrari goals to higher perceive how one can handle the warm-up section of the softer compounds in qualifying circumstances, an space the place the SF-24 had proven weaknesses.
The scenario is totally completely different for McLaren and Pink Bull, which have opted to deal with the tougher compounds. McLaren will carry 5 units of C1—fewer solely than Aston Martin and Alpine—together with 9 units of C2. Pink Bull, however, has made a barely completely different choice, with solely two units of C1 however as many as 11 units of C2. It’s doubtless that a few of these units can be used for typical aerodynamic data-gathering assessments.
It is usually fascinating to notice the alternatives of Aston Martin and Alpine, which have centered completely on the toughest compounds, to the purpose of not bringing a single set of C4. Final yr, the AMR24 usually struggled with tire degradation, so it may be assumed that Aston Martin will conduct repeated medium-length stints throughout these assessments to evaluate tire habits beneath completely different setup circumstances.
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