Article C11.3.4

Brake Disc Cooling Holes

Technical Regulations

Article C11.3.4

FIA Source

Brake Disc Cooling Holes

Chapter: C11

In Simple Terms

F1 brake discs have tiny holes drilled through them to help cool the brakes during races. The FIA requires these cooling holes to be at least 2.5mm in diameter to ensure they're effective at dissipating heat and preventing brake failure.

  • Cooling holes in brake discs must have a minimum diameter of 2.5mm
  • These holes are essential for brake cooling and safety during high-speed racing
  • The regulation ensures all teams meet the same minimum cooling standards
  • Smaller holes would be ineffective at removing heat from the braking system
Official FIA Text

Minimum diameter of cooling holes in discs is 2.5mm.

brake disc coolingcooling holesbrake systemf1 regulationsbrake temperature
2026 Season Regulations