Red Bull’s Formula 1 supremacy came to a screeching halt in Miami last season, leaving fans and even the team itself puzzled by the sudden power shift. The shock dethroning wasn’t just about McLaren’s upgraded MCL38—it uncovered a design war over flexi wings that would reshape the championship fight and expose Red Bull’s vulnerabilities.
For the first time since the ground effect era began, Red Bull’s once-untouchable edge was eroded, revealing the critical role of front-wing flexibility in balancing low-speed grip and high-speed stability. Here’s the deep dive into what happened—and why the flexi-wing saga could shape F1’s future.
How McLaren’s flexi-wing masterstroke changed everything
Flexi wings—front wings designed to flex under aerodynamic load—were the unexpected disruptor of 2024. These designs allowed teams like McLaren and Mercedes to strike the perfect balance between low-speed understeer and high-speed oversteer, an issue that had plagued teams under the current regulations.
For McLaren, it wasn’t just an incremental improvement. The flexi wing revolutionized how their car behaved across different speed ranges, enabling them to run stiffer suspensions without compromising aerodynamic balance. The result? McLaren leapfrogged from a distant contender to the team to beat, toppling Red Bull’s previously dominant RB20.
Red Bull’s missed opportunity: Waiting for FIA clarity
While McLaren and Mercedes embraced the flexi-wing evolution, Red Bull found itself in limbo. Pierre Wache, Red Bull’s technical director, admitted the team was blindsided by how effectively their rivals deployed this concept.
“We benefitted from a different approach for two years,” Wache explained. “The others introduced flexi wings, which allowed them to rebalance the car and outperform us.”
Caught between a tight cost cap and the uncertainty of the FIA’s stance on the legality of flexi wings, Red Bull hesitated. Partnering with Ferrari, they pressed the FIA to investigate, questioning whether these designs were pushing the rulebook too far. Yet, the FIA found no breach of regulations, leaving Red Bull scrambling as McLaren and Mercedes surged ahead.
Ferrari and McLaren’s bold gamble pays off
While Red Bull played it safe, McLaren and Ferrari doubled down on flexi-wing development. Ferrari introduced updates late in the season—most notably in Singapore and Austin—while McLaren had already perfected the concept earlier. McLaren boss Andrea Stella admitted that focusing on aero elasticity was the game-changer.
“What makes the difference is what you focus on,” Stella said. “We realized aero elasticity had untapped potential, and we went all-in.”
The gamble paid off. Ferrari ended the season with momentum, and McLaren emerged as the team to beat, leaving Red Bull scrambling to adapt.
The FIA’s stance: No rule changes, but a new battlefield emerges
The FIA, led by Nikolas Tombazis, ultimately decided against imposing stricter regulations on flexi wings for 2025. The governing body acknowledged that while these designs push boundaries, they remained within the acceptable range of flexibility.
“In an ideal world, we’d push for stiffer designs,” Tombazis explained. “But these rules have been in place since 2022, and making knee-jerk changes would be unfair.”
The FIA’s decision effectively gave teams a green light to fully exploit flexi-wing designs in 2025, setting the stage for an arms race among the top teams.
Red Bull’s winter rebuild: Can the RB21 bounce back?
With the cost cap reset for 2025, Red Bull has had the chance to pour resources into developing their own flexi-wing solution. Wache hinted that their focus is on maximizing the flexi wing’s ability to expand the car’s balance window, a critical area where McLaren had the upper hand.
“The visible difference isn’t what I’m looking for,” Wache said. “I’m looking for a bigger balance window.”
Ferrari, meanwhile, has already laid the groundwork with late-season upgrades. McLaren, emboldened by their success, will undoubtedly push even further. With the margins between the top teams razor-thin, even minor gains in flexi-wing efficiency could prove decisive.
What’s next? A high-stakes battle for supremacy
The 2025 season will be defined by how effectively Red Bull, Ferrari, and McLaren exploit flexi wings. McLaren’s success has shown that focusing on aero elasticity can pay massive dividends, while Ferrari’s late-season form suggests they’re ready to challenge for the title.
Red Bull’s response will be critical. After a winter of retooling, their ability to reclaim dominance hinges on closing the flexi-wing gap. With every team now aware of the concept’s potential, the fight for supremacy in 2025 could be the most intense in recent F1 history.
