Build hard Disciplines wake, tow
The Pro has 2 sizes in the current range, from 13 to 19 L. Its slenderness, 2.76, is greater than that of 38% 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 2.3× the tolerance.
| Brand | Board | Volume L | Δ volume | Length mm | Δ length | Slenderness | Mount |
|---|---|---|---|---|---|---|---|
| Appletree | Appleslice Prone 4'0'' (17L) | 17 | -10.5% | 1,219 | -4.0% | 2.75 (-0.6%) | twin-track |
| Levitaz | Exo 5 | 20 | +5.3% | 1,250 | -1.6% | 2.87 (+4.1%) | twin-track |
| Appletree | Appleslice Prone 4'2'' (22L) | 22 | +15.8% | 1,270 | +0.0% | 2.78 (+0.7%) | twin-track |
| Family | Pro |
|---|---|
| Model | Noah Flegel Pro |
| Size, as the brand prints it | 4'2" |
| Volume, L | 19 |
| Length, mm | 1,270 (4'2") |
| Width, mm | 460 |
| Thickness, mm | 44 |
| Weight, kg | — |
| Slenderness (length ÷ width) | 2.76 |
| Slenderness band | 2.5–3.0 |
| Mount | — |
| Strap inserts | yes |
| Build | hard |
| Construction | carbon fiber and PVC sandwich, dual carbon stringer system |
| Disciplines | wake, tow |
| 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.
All Armstrong boards · Armstrong on the Board Map · All foilboards