Starboard X-15 Windfoil 85

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Build hard Disciplines windfoil, race 2026

The X-15 Windfoil has 2 sizes in the current range, from 152 to 166 L. Its slenderness, 2.65, is greater than that of 30% of the 1,895 current boards that publish a length and a width.

Closest boards from other brands

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.

The nearest current boards

None of these is within the tolerances above: each misses on volume, length or slenderness by up to 2.0× the tolerance.

The current boards from other brands nearest the Starboard X-15 Windfoil 85, closest first. None is within ±7% of volume and ±2% of length, and ±2% of slenderness where both publish a width.
BrandBoardVolume LΔ volumeLength mmΔ lengthSlendernessMount
KalamaE3 Wing SUP 30's 7'2"167+0.6%2,184-2.9%2.71 (+2.4%)twin-track
Loco SurfingLoco Switch 4 in 1 33145-12.7%2,286+1.6%——
GONGWing foil Board Inflatable HIPE First 7'1175+5.4%2,159-4.0%2.66 (+0.3%)twin-track

Specifications

Every figure is Starboard's own, read from the source linked in the last row, converted to millimetres and kilograms where the brand prints inches or pounds. Slenderness is computed here, length ÷ width.
FamilyX-15 Windfoil
ModelX-15 Windfoil
Size, as the brand prints itX-15 (Windfoil) 85
Volume, L166
Length, mm2,250 (7'5")
Width, mm850
Thickness, mm144
Weight, kg9
Slenderness (length ÷ width)2.65
Slenderness band2.5–3.0
Mount—
Strap inserts—
Buildhard
ConstructionCarbon Reflex Sandwich
Disciplineswindfoil, race
Rider weight—
Rider level—
Model year2026
Sourcemanufacturer · read 2026-10-02

Every figure above is the manufacturer's published claim, converted to comparable units.

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