Mount twin-track Build hard Disciplines prone, tow, wake 2026
The Surf Foil Board Lethal FSP Pro 2026 has 9 sizes in the current range, from 27 to 45 L. Its slenderness, 2.92, is greater than that of 49% of the 1,895 current boards that publish a length and a width.
Mount is shown beside each board, never matched on.
| Brand | Board | Volume L | Δ volume | Length mm | Δ length | Slenderness | Mount |
|---|---|---|---|---|---|---|---|
| Armstrong | Surf 42L 4'9 | 42 | +0.0% | 1,448 | -1.7% | 2.91 (-0.3%) | — |
| F-One | ROCKET SURF 4'11 | 40 | -4.8% | 1,500 | +1.8% | 2.94 (+0.8%) | twin-track |
| Family | Lethal |
|---|---|
| Model | Surf Foil Board Lethal FSP Pro 2026 |
| Size, as the brand prints it | 4'10 |
| Volume, L | 42 |
| Length, mm | 1,473 (4'10") |
| Width, mm | 505 |
| Thickness, mm | 88 |
| Weight, kg | 4.1 |
| Slenderness (length ÷ width) | 2.92 |
| Slenderness band | 2.5–3.0 |
| Mount | twin-track |
| Strap inserts | yes |
| Build | hard |
| Construction | FSP Pro |
| Disciplines | prone, tow, wake |
| Rider weight | — |
| Rider level | — |
| Model year | 2026 |
| Source | manufacturer · read 2026-10-02 |
Every figure above is the manufacturer's published claim, converted to comparable units.