Starboard Ace Foil 7'7" x 21"

120volume, L
2,311length, mm
533width, mm
4.34slenderness

Mount twin-track Build hard Disciplines downwind, sup, wing 2026

The Ace Foil has 6 sizes in the current range, from 100 to 140 L. Its slenderness, 4.34, is greater than that of 89% of the 1,895 current boards that publish a length and a width.

Closest boards from other brands

Mount is shown beside each board, never matched on.

Current boards from other brands within ±7% of volume and ±2% of length, and ±2% of slenderness where both publish a width of the Starboard Ace Foil 7'7" x 21", closest first.
Brand	Board	Volume L	Δ volume	Length mm	Δ length	Slenderness	Mount
F-One	ROCKET FREE DOWNWIND 7'8	124	+3.3%	2,337	+1.1%	4.38 (+1.1%)	twin-track
Amos	Cypher Surf SUP 7'8" 21" 6" 125L	125	+4.2%	2,337	+1.1%	4.38 (+1.1%)	twin-track
Loco Surfing	Loco Switch 4 in 1 31	125	+4.2%	2,286	-1.1%	—	—

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.
Family	Ace Foil
Model	Ace Foil
Size, as the brand prints it	7'7" x 21" ACE FOIL
Volume, L	120
Length, mm	2,311 (7'7")
Width, mm	533
Thickness, mm	173
Weight, kg	6.39
Slenderness (length ÷ width)	4.34
Slenderness band	4.0–5.0
Mount	twin-track
Strap inserts	—
Build	hard
Construction	Blue Carbon
Disciplines	downwind, sup, wing
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.

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