Unifoil Progression Carbon Stabilizers

The Unifoil Progression Carbon Stabilizers are rear-wing components from South African foil designer Clifford Coetzer's Unifoil brand, sold individually in three distinct profile options: Shank, Shiv, and Shunt. Each profile shares the same planform outline but uses a different foil cross-section to shift the rider's balance point over the board. The Shank features a symmetrical 50/50 foil suited to back-footed riders, the Shiv uses a flat asymmetrical profile for a neutral stance, and the Shunt employs a reflex foil that favors front-footed riding. All three are built in carbon composite, making them thinner, stiffer, and lighter than Unifoil's G10 fiberglass equivalents.

This modular approach lets riders swap stabilizers on the same fuselage to fine-tune how the foil feels underfoot, rather than committing to a single rear-wing personality across every discipline.

• Profiles available: Shank (back-footed / symmetrical), Shiv (neutral / flat-asymmetrical), Shunt (front-footed / reflex)
• Span — 13 option: 13.5 in (330 mm)
• Span — 14 option: 14.5 in (355 mm)
• Construction: Carbon composite
• Shim compatibility: 0–3 degrees of pitch adjustment via Unifoil shim sets

These stabilizers are designed for intermediate to advanced foilers who want granular control over how their setup rides. The three-profile system is particularly useful for riders who cross disciplines — someone who wings on light-wind days and kite-foils or prone-foils on others can keep the same front wing and mast while swapping rear wings to match the session. The Shiv's neutral balance is a practical starting point for winging and prone foiling, while the Shank and Shunt let riders dial in a preference for back-foot or front-foot drive.

Size selection is straightforward: the 13.5-inch span targets lighter riders or those prioritizing speed and tight turning, while the 14.5-inch option adds stability and pump efficiency for heavier riders (roughly 80 kg and above) or anyone who values glide between swells.

Within Unifoil's catalog, the Shank, Shiv, and Shunt are also sold together as a three-pack in both carbon and G10 fiberglass versions. The carbon singles offered here let riders purchase only the profile they need — or replace a damaged tail — without buying the full set. Unifoil also sells a standalone Progression Carbon Tail, a dedicated stabilizer that evolved from the Shiv outline with a thinner cross-section and pulled-in wingtips for sharper turning angles and additional pump speed.

For buyers comparing across brands, similarly sized carbon stabilizers from Armstrong and Axis occupy the same price tier, though neither offers three interchangeable profiles on the same outline. The closest conceptual parallel is the shim-based tuning approach used across the industry, but Unifoil's method changes the foil section itself rather than just the angle of attack, giving a more pronounced shift in ride character.