Pirelli keeps five F1 slick compounds for 2027

Pirelli will keep Formula 1’s slick tyre range at five compounds for 2027 rather than add a sixth, with motorsport head Dario Marrafuschi saying a reworked C1-to-C5 ladder should create clearer performance gaps and better strategic overlap on its own.

In an exclusive interview reported by Motorsport.com Italy, Marrafuschi said there will “continue to be five levels” and that Pirelli will “not add or remove a level,” ruling out an expansion of the current slick range.

That decision follows consideration of an extra compound, but Pirelli concluded it was unnecessary. Marrafuschi pointed to Monaco as an example, saying most cars started on the C4, which was the medium tyre there. He argued that introducing a C6 for that race would solve too little for too narrow a use case, because it would then be unusable for the rest of the season.

The same logic helps explain why the softest C6 was dropped before the current season. Marrafuschi said it had appeared only occasionally on low-demand street circuits, the lap-time gap to the C5 was too small, and it brought no real strategic benefit. In Pirelli’s view, that meant an even softer step was not needed.

Instead, the focus for 2027 is on recalibrating the spacing between C1 and C5 around next year’s performance targets. Marrafuschi said Pirelli wants a clear lap-time differentiation between the five compounds while keeping wear proportional, so that teams arrive at weekends with tyre choices that can support overlapping strategies rather than forcing one obvious answer.

He cited recent races to show the target. In Barcelona and Austria, two-stop and three-stop races were very similar on paper, while at Silverstone the gap between one-stop and two-stop strategies was much larger. Pirelli’s aim for 2027 is to bring those gaps closer together and give teams and drivers more room to choose between viable approaches, assuming races are not reshaped by Safety Cars or other neutralisations.

That would make the five-compound structure more flexible without expanding it, with Marrafuschi saying the base architecture is already in place and the next step is to fine-tune the step-offs between compounds to deliver more strategic variety across the calendar.