It has been six years since French skier Quentin Ladame stepped up to the legendary Chabrières track at Vars, donned the customary skin-tight red speed suit, and did something that defies most survival instincts: he dropped in backwards.
On that day, Ladame set the fastest known switch skiing speed of 138.62 km/h (86.13 mph).
To put that in perspective for my fellow gear nerds, that is faster than the legal speed limit on most US interstates, achieved while looking over your shoulder with limited peripheral vision. As a former product designer, I can tell you that the physics involved here are a nightmare compared to traditional speed skiing.
The Technical Challenge
Speed skiing is usually a battle of drag coefficients ($C_d$). In a forward tuck, you are streamlining the human form into a teardrop shape. When you ride switch, you introduce several chaotic variables:
- The Head Turn: To see where you are going, you have to rotate your neck. This breaks the aerodynamic seal of the shoulders, creating turbulent airflow right at the leading edge of the body.
- Ski Geometry: You can't use massive 240cm speed skis with flat tails. You need twin tips to initiate and hold the line, which typically have less effective edge contact and more vibration at high speeds.
- Biomechanical Tension: Holding a switch tuck at 80+ mph requires immense core stability to prevent the "speed wobbles" that usually result in a yard sale.
The Gear: What Would It Take to Break It?
The original report suggests that with the right athlete and specialized gear, this record is ripe for the taking. I tend to agree, but we need to look beyond just the skis.
The biggest inhibitor to switch speed is the "peek." Turning your head creates drag and disorientation. The source article proposes "rigs" to avoid looking over your shoulder—essentially a blind reverse tuck.
From a tech standpoint, here is how I would engineer the record-breaking kit:
- Heads-Up Display (HUD): Instead of mirrors, integrate a rear-facing wide-angle camera feeding directly into a HUD inside the goggles. This allows the skier to keep their head locked forward (relative to their body) for optimal aerodynamics.
- Stiff, Directional Twin Tips: You need a ski that is essentially a race room GS construction but with a rise in the tail. Something with metal laminates to dampen chatter.
- The Boots: You need a cabrio design or a very stiff freestyle boot that allows for forward (or in this case, backward) pressure without collapsing.
My Top Picks for High-Speed Switch Stability: If you aren't trying to hit 86 mph but want stability for switch landings and charging hard, these are the setups I recommend:
- The Skis: Volkl Revolt 104 Skis – These have the stiffness required for high speeds while maintaining a freestyle shape.
- The Boots: Dalbello Il Moro Boots – The legendary cabrio design provides a progressive flex that saves your shins when landing switch.
- The Optics: Oakley Flight Deck Goggles – If you are going fast, you need maximum peripheral vision.
The Venue
The record was set at Vars, France, home to the fastest speed track in the world. The gradient there is steep enough to accelerate you faster than a Ferrari. If you are planning to visit the French Alps to watch the pros (or just ski normal speeds), you can book your French Alps ski trip here.
The Verdict
90 mph blind reverse tuck? It sounds terrifying, but technically feasible. The record has stood for six years, which in the world of sports science is an eternity. It is waiting for someone with the right quad strength and perhaps a lack of fear response to claim it.
Source Credit: This story was originally reported by Francis Xavier at Unofficial Networks.
