Red Bull has apparently been ordered to change the design of its brake cooling ducts after the FIA found them to contravene the technical regulations.
The news comes just days after the outfit was forced to change its floor design which featured two small holes ahead of the front wheels, which the governing body also agreed were against the regulations.
It’s reported that the cooling system within the brakes and wheel hub are being used as an aerodynamic aid, rather the purely to cool the brakes.
The system has been in place on the RB8 since the first race.
![Lando Norris and Oscar Piastri [McLaren] celebrate their 1-2 finish at the 2025 F1 Austrian GP](https://www.motorsportweek.com/wp-content/uploads/2025/06/Lando-Norris-Oscar-Piastri-McLaren-F1-2025-1-120x86.webp)
According to the report, Red Bull argued that the air flow being channelled through the cooling system within the brakes was purely for cooling purposes.
However the FIA counter-argued that because the rim, hub and bolt move, they’re not classed as ‘immobile in relation to the car’ and therefore any use as aerodynamic aids contravenes regulation 3.15.
A quick fix is likely in Canada, with the team able to close off the offending holes, but a redesign is necessary prior to the European Grand Prix.
![Lando Norris and Oscar Piastri [McLaren] celebrate their 1-2 finish at the 2025 F1 Austrian GP](https://www.motorsportweek.com/wp-content/uploads/2025/06/Lando-Norris-Oscar-Piastri-McLaren-F1-2025-1-350x250.webp)
