North, 2026

North Atmos Ultra 2026

1360mm long · 4'6"

400mm wide

≈ 45mm thick · estimated

–litres

See similar boards

Open in Studio See it on northactionsports.com

Sizes & Numbers

Listed by the brand, read off a photo, or worked out

In one line

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

derived · against the 87 other kite twintip boards in the atlas, read off the outlines.

As listed by North

North Atmos Ultra 2026: every size as listed by North
size	length	width	thickness	weight	price
136 × 40 cm	136 cm · 1360 mm	400 mm	≈ 45 mm · estimated	–	US$1,799
138 × 41 cm	138 cm · 1380 mm	410 mm	≈ 14 mm · a guess	–	US$1,799
141 × 42 cm	141 cm · 1410 mm	420 mm	≈ 14 mm · a guess	–	US$1,799
144 × 43 cm	144 cm · 1440 mm	430 mm	≈ 14 mm · a guess	–	US$1,799

Prices as the North store showed them on 2026-10-29, in its currency · the cheapest version first, every version on hover

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

Which Atmos Ultra Size for Your Weight?

The North Atmos Ultra 2026 size each rider would pick, by weight and level

Your weight

kg≈ 165 lb

Your level

75 kg · getting there · look for 134–140 cm

The Atmos Ultra 136 × 40 cm

2 sizes fall in your range; the 136 × 40 cm is nearest its middle.

Other boards for you

A rule of thumb (104 cm + 0.42 cm per kg, + 1 cm at your level, ± 3 cm), not North’s chart

Every weight and level

North Atmos Ultra 2026: the size for a rider of 60 to 105 kg, by level
level	60 kg	75 kg	90 kg	105 kg
First sessions104 cm + 0.42 cm per kg, + 3 cm at your level, ± 3 cm	136 × 40 cm · big	138 × 41 cm	144 × 43 cm	144 × 43 cm · small
Getting there104 cm + 0.42 cm per kg, + 1 cm at your level, ± 3 cm	136 × 40 cm · big	136 × 40 cm	144 × 43 cm	144 × 43 cm · small
Confident104 cm + 0.42 cm per kg, ± 3 cm	136 × 40 cm · big	136 × 40 cm	141 × 42 cm	144 × 43 cm · small
Expert104 cm + 0.42 cm per kg, − 2 cm at your level, ± 3 cm	136 × 40 cm · big	136 × 40 cm	141 × 42 cm	144 × 43 cm

Rules of thumb, not North’s chart · “small” and “big”: the nearest size, just outside the range · How the sizes are worked out · Find your board

Next to your board?

Lay the North Atmos Ultra 136 × 40 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 136 × 40 cm outline · derived

47 %wide point, 643 mm from the tail

3.40length over width

374mm wide 12″ from the tail

4,952cm² of planform

Read off the 138 × 41 cm outline · derived

47 %wide point, 652 mm from the tail

3.37length over width

383mm wide 12″ from the tail

5,150cm² of planform

Read off the 141 × 42 cm outline · derived

47 %wide point, 666 mm from the tail

3.36length over width

391mm wide 12″ from the tail

5,391cm² of planform

Read off the 144 × 43 cm outline · derived

47 %wide point, 680 mm from the tail

3.35length over width

399mm wide 12″ from the tail

5,636cm² of planform

Rocker of the 136 × 40 cm · estimated

≈ 68 mmtail rocker, at the tip

≈ 17 mm12″ from the tail

≈ 15 mm12″ from the nose

≈ 65 mmnose rocker, at the tip

≈ 320 mmflat to within 3 mm, from 39 % to 62 % of the length

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

≈ 45 mmat its thickest, 53 % from the tail

≈ 16 mmlonger along the bottom curve than flat

Lay this rocker over other boards

Rocker of the 138 × 41 cm · scaled from the 136 × 40 cm, estimated

≈ 69 mmtail rocker, at the tip

≈ 18 mm12″ from the tail

≈ 16 mm12″ from the nose

≈ 66 mmnose rocker, at the tip

≈ 322 mmflat to within 3 mm, from 39 % to 62 % of the length

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

≈ 14 mmat its thickest, 53 % from the tail

≈ 16 mmlonger along the bottom curve than flat

Lay this rocker over other boards

Rocker of the 141 × 42 cm · scaled from the 136 × 40 cm, estimated

≈ 70 mmtail rocker, at the tip

≈ 19 mm12″ from the tail

≈ 17 mm12″ from the nose

≈ 68 mmnose rocker, at the tip

≈ 326 mmflat to within 3 mm, from 39 % to 62 % of the length

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

≈ 14 mmat its thickest, 53 % from the tail

≈ 17 mmlonger along the bottom curve than flat

Lay this rocker over other boards

Rocker of the 144 × 43 cm · scaled from the 136 × 40 cm, estimated

≈ 72 mmtail rocker, at the tip

≈ 20 mm12″ from the tail

≈ 18 mm12″ from the nose

≈ 69 mmnose rocker, at the tip

≈ 329 mmflat to within 3 mm, from 39 % to 62 % of the length

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

≈ 14 mmat its thickest, 53 % from the tail

≈ 17 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 · On North's photo of the 136 × 40 (its size assumed); not checked: North lists no thickness or volume. Tail end set by North's photo convention, not checked by a person. · estimated