F-One Eagle X 900 UHM Carbon Front Wing USED

The F-One Eagle X 900 UHM Carbon Front Wing is a high-aspect-ratio foil wing built for speed-oriented wing foiling and downwind SUP foiling. Part of the second generation of F-One's Eagle X line, the 900 cm² size sits in the upper-middle of the range and is constructed with Ultra High Modulus (UHM) carbon fiber — a layup that F-One states is 1.8 times stiffer than standard carbon and 1.2 times stiffer than their High Modulus carbon option. The wing uses a monobloc construction method, where the front wing and fuselage interface are molded as a single unit using pre-preg carbon and high-temperature curing. This particular listing is for a used unit, offering a lower entry price on a wing that retails new at a higher price point.

The Eagle X series carries an aspect ratio of 12 across all sizes, placing it firmly in the high-performance, high-glide category. F-One refined the tip profile on this generation to improve forward drive and control at speed, with narrower wingtips that aid responsiveness during carving turns despite the long span.

• Wing Area: 900 cm²
• Span: 104 cm
• Aspect Ratio: 12
• Weight: 1.23 kg
• Construction: Monobloc pre-preg UHM Carbon
• Connection: TITAN 2 (two M8 screws), compatible with aluminum or carbon masts
• Included Hardware: 3x M6-32mm + 2x M6-25mm tapered head screws (A4, T30 torx), EVA soft wing cover
• Available Sizes in Line: 500, 600, 700, 800, 900, 1000 cm²

The Eagle X 900 is aimed at intermediate-to-advanced riders who prioritize glide efficiency and speed over low-speed maneuverability. F-One positions the Eagle X line for riders chasing downwind runs — whether on a SUP or under a wing — where sustained speed and the ability to connect swells matter more than tight turning radius. The 900 cm² size provides enough area to keep takeoffs manageable and maintain flight through lulls, while the high aspect ratio delivers the forward drive needed for long-distance downwinders.

Riders stepping into the Eagle X from lower-aspect foils should expect a different handling feel. The 104 cm span and stiff UHM layup deliver direct feedback, which rewards precise input but is less forgiving of abrupt corrections than wider-chord, lower-aspect wings. This is not a learning foil — it assumes comfort on foil and the ability to manage speed.

Within F-One's front wing catalog, the Eagle X sits above the standard Eagle as the brand's dedicated high-aspect, speed-and-glide platform. The Eagle X replaced the first-generation Eagle X with updated tip profiles and refined construction. F-One recommends pairing it with the DW 136 XS Monobloc tail for downwind use or the DW COMP 135 XS tail depending on discipline and rider preference.

The 900 cm² size occupies a versatile spot in the six-wing Eagle X lineup: larger than the 800 for better low-end and glide, but smaller than the 1000 for riders who want a bit more top-end speed and maneuverability. In the broader market, it competes with other high-aspect front wings in the 850–950 cm² range, such as offerings from Axis and Armstrong in their respective downwind-focused lines.