Mount twin-track Build hard Disciplines downwind, sup 2025-2026
The Ace Foil Lightning has 10 sizes in the current range, from 83 to 140 L. Its slenderness, 5.29, is greater than that of 96% of the 1,895 current boards that publish a length and a width.
No current board from another brand is within ±7% of volume and ±2% of length, and ±2% of slenderness where both publish a width of this one.
None of these is within the tolerances above: each misses on volume, length or slenderness by up to 2.0× the tolerance.
| Brand | Board | Volume L | Δ volume | Length mm | Δ length | Slenderness | Mount |
|---|---|---|---|---|---|---|---|
| Duotone | Downwinder Slim D/LAB 2026 7'8" | 95 | +9.2% | 2,330 | +1.9% | 5.18 (-2.2%) | twin-track |
| Duotone | Downwinder Slim SLS 2026 7'6" | 90 | +3.4% | 2,290 | +0.2% | 5.15 (-2.8%) | twin-track |
| Armstrong | Downwind Ocean 95L 7'8 | 95 | +9.2% | 2,337 | +2.2% | 5.50 (+3.9%) | — |
| Family | Ace Foil Lightning |
|---|---|
| Model | Ace Foil Lightning |
| Size, as the brand prints it | 7'6" x 17" ACE FOIL LIGHTING |
| Volume, L | 87 |
| Length, mm | 2,286 (7'6") |
| Width, mm | 432 |
| Thickness, mm | 170 |
| Weight, kg | 5.5 |
| Slenderness (length ÷ width) | 5.29 |
| Slenderness band | > 5.0 |
| Mount | twin-track |
| Strap inserts | no |
| Build | hard |
| Construction | Blue Carbon |
| Disciplines | downwind, sup |
| Rider weight | up to 80 kg (the brand’s stated range) |
| Rider level | — |
| Model year | 2025-2026 |
| Source | manufacturer · read 2026-10-02 |
Every figure above is the manufacturer's published claim, converted to comparable units.
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