F-One, 2026

Spark 2026

1340mm long · 4'5"

395mm wide

≈ 14mm thick · a guess

–litres

Open in Studio See it on f-one.world

Sizes & Numbers

Listed by the brand, read off a photo, or worked out: where every number comes from

In one line

Its width sits further back. A square tail, a full nose and parallel rails.

derived · against the 76 other kite twintip boards in the atlas, read off the outlines.

As listed by F-One

F-One Spark 2026: every size as listed by F-One
size	length	width	thickness	weight
134 × 39.5 cm	134 cm · 1340 mm	395 mm	≈ 14 mm · a guess	2.3 kg
136 × 41 cm	136 cm · 1360 mm	410 mm	≈ 14 mm · a guess	2.3 kg
138 × 42 cm	138 cm · 1380 mm	420 mm	≈ 14 mm · a guess	2.5 kg
140 × 43 cm	140 cm · 1400 mm	430 mm	≈ 14 mm · a guess	2.6 kg

Every size side by side, tails on one line, one scale

Next to your board?

Lay the F-One Spark 134 × 39.5 cm over up to four others, at one scale.

Compare with…

Shape & Rocker

From above, then from the side, true scale · the chosen size solid, the others dashed

Read off the 134 × 39.5 cm outline · derived

49 %wide point, 653 mm from the tail

3.37length over width

366mm wide 12″ from the tail

4,831cm² of planform

Read off the 136 × 41 cm outline · derived

49 %wide point, 663 mm from the tail

3.32length over width

377mm wide 12″ from the tail

5,059cm² of planform

Read off the 138 × 42 cm outline · derived

49 %wide point, 673 mm from the tail

3.29length over width

386mm wide 12″ from the tail

5,259cm² of planform

Read off the 140 × 43 cm outline · derived

49 %wide point, 682 mm from the tail

3.26length over width

395mm wide 12″ from the tail

5,462cm² of planform

Rocker of the 134 × 39.5 cm · borrowed (≈), estimated

≈ 49 mmtail rocker, at the tip

≈ 14 mm12″ from the tail

≈ 13 mm12″ from the nose

≈ 47 mmnose rocker, at the tip

≈ 338 mmflat to within 3 mm, from 38 % to 63 % of the length

50 %of the length to the lowest point, from the tail

≈ 14 mmat its thickest, 55 % from the tail

≈ 7 mmlonger along the bottom curve than flat

Lay this rocker over other boards

Rocker of the 136 × 41 cm · scaled from the 134 × 39.5 cm, borrowed (≈), estimated

≈ 50 mmtail rocker, at the tip

≈ 15 mm12″ from the tail

≈ 13 mm12″ from the nose

≈ 48 mmnose rocker, at the tip

≈ 340 mmflat to within 3 mm, from 38 % to 63 % of the length

50 %of the length to the lowest point, from the tail

≈ 14 mmat its thickest, 55 % from the tail

≈ 7 mmlonger along the bottom curve than flat

Lay this rocker over other boards

Rocker of the 138 × 42 cm · scaled from the 134 × 39.5 cm, borrowed (≈), estimated

≈ 50 mmtail rocker, at the tip

≈ 15 mm12″ from the tail

≈ 14 mm12″ from the nose

≈ 49 mmnose rocker, at the tip

≈ 342 mmflat to within 3 mm, from 38 % to 63 % of the length

50 %of the length to the lowest point, from the tail

≈ 14 mmat its thickest, 55 % from the tail

≈ 7 mmlonger along the bottom curve than flat

Lay this rocker over other boards

Rocker of the 140 × 43 cm · scaled from the 134 × 39.5 cm, borrowed (≈), estimated

≈ 51 mmtail rocker, at the tip

≈ 16 mm12″ from the tail

≈ 14 mm12″ from the nose

≈ 50 mmnose rocker, at the tip

≈ 344 mmflat to within 3 mm, from 38 % to 63 % of the length

50 %of the length to the lowest point, from the tail

≈ 14 mmat its thickest, 55 % from the tail

≈ 7 mmlonger along the bottom curve than flat

Lay this rocker over other boards

True proportions · dots at 10 mm and 12″ in from each tip · bracket: flat to within 3 mm · drawn hollow: no usable side photo of this board · shaded: the middle 80 % of its group · No usable side photo of this board: the median of 20 twintip boards from 16 product lines. Tail ends set by rule, Claude or a brand convention on their photos, none checked by a person. · estimated