Build hard Disciplines prone, pump, wake
The Pump has 4 sizes in the current range, from 24 to 44 L. Its slenderness, 2.52, is greater than that of 21% 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 2.1× the tolerance.
| Brand | Board | Volume L | Δ volume | Length mm | Δ length | Slenderness | Mount |
|---|---|---|---|---|---|---|---|
| Amos | Nitro 4'0" 18 3/4" 2 5/8" 26L | 26 | +8.3% | 1,219 | +0.0% | 2.56 (+1.5%) | twin-track |
| Tabou | Tiny HD 2026 26 | 26 | +8.3% | 1,230 | +0.9% | 2.54 (+0.5%) | twin-track |
| Amos | Nano 3'11" 18 1/2" 2 3/4" 27.5L | 27.5 | +14.6% | 1,194 | -2.1% | 2.54 (+0.7%) | twin-track |
| Family | Pump |
|---|---|
| Model | Pump |
| Size, as the brand prints it | Pump 24 |
| Volume, L | 24 |
| Length, mm | 1,219 (4'0") |
| Width, mm | 483 |
| Thickness, mm | — |
| Weight, kg | — |
| Slenderness (length ÷ width) | 2.52 |
| Slenderness band | 2.5–3.0 |
| Mount | — |
| Strap inserts | yes |
| Build | hard |
| Construction | — |
| Disciplines | prone, pump, wake |
| Rider weight | — |
| Rider level | — |
| Model year | — |
| Source | manufacturer · read 2026-10-02 |
Every figure above is the manufacturer's published claim, converted to comparable units.