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F1 tyre compounds explained: C1, C2, C3, C4 and C5

Alejandro Fuenzalida
Developer
31 de mayo de 2026
2 min de lectura
F1 tyre compounds explained: C1, C2, C3, C4 and C5

F1 tyre compounds: C1 to C5

Pirelli produces five dry F1 tyre compounds, numbered from C1 (hardest) to C5 (softest). For each Grand Prix, Pirelli picks three of the five and rebadges them as hard (white sidewall), medium (yellow) and soft (red).

How they behave

CompoundHardnessLap paceDurabilityWarm-up time
C1Very hardSlowVery highLong
C2HardSlowHighLong
C3MediumMediumMediumMedium
C4SoftFastLowShort
C5Very softVery fastVery lowVery short
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Wet compounds

In addition to the dry compounds there are two specific wet tyres:

  • Intermediates (green sidewall): damp track without standing water.
  • Full wet (blue sidewall): heavy rain with standing water on track.

How Pirelli picks the weekend compounds

The selection matches the circuit profile:

  • High downforce, abrasive tracks (Silverstone, Suzuka) → harder compounds (C1–C3).
  • Slow, low-degradation tracks (Monaco, Singapore) → softer compounds (C3–C5).

Usage rules

  • In a dry race, every driver must use at least two different compounds (unless a race-ending Safety Car neutralises the rule).
  • In qualifying, the soft is normally chosen for the fastest possible lap.

FAQ

Which compound is fastest per lap? The soft of the weekend (usually C4 or C5).

Why do the "hard/medium/soft" labels change each GP? Because Pirelli's selection changes. The "hard" in Monaco can be C3, while in Silverstone it's C1.

Can you mix intermediates and slicks on one lap? Not by regulation, but drivers can switch between stints depending on conditions.


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Tags:
Formula 1TyresPirelliF1 Glossary

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