Article C10.8.1
Tyre Supply
Technical Regulations
Article C10.8.1
Tyre Supply
Chapter: C10
In Simple Terms
Teams must use Pirelli tyres exactly as they come from the factory without any modifications like cutting, grooving, or chemical treatments. The FIA can approve different tyre specifications only if the standard tyres aren't suitable for specific race conditions.
- Tyres must be used in their original, unmodified state as supplied by the manufacturer
- Any modifications including cutting, grooving, or application of solvents are strictly prohibited
- The FIA has authority to authorize alternative tyre specifications only when standard tyres are deemed unsuitable for racing conditions
Official FIA Text
All tyres must be used as supplied by manufacturer. Any modification including cutting, grooving, or application of solvents is prohibited. FIA may authorize additional tyre specifications if unsuitable.
tyre supplytyre modificationpirelligroovingtyre specifications
2026 Season Regulations