UHM Skinny Carbon
AFS's thinnest mast, with reduced thickness and chord for less drag and more speed, built monolithic without a foam core and with ultra-high- modulus fibres. Aimed at experienced riders in wing, surf, SUP and dock start, with the 75 cm suited to surf foiling and shallow spots.
Source: afs-foiling.com · checked 2026-09-21
Masts 3
| Size | Length | Weight | Material |
|---|---|---|---|
| 75cm | 750 mm | 1600 g | Carbon |
| 80cm | 800 mm | 1900 g | Carbon |
| 85cm | 850 mm | 1900 g | Carbon |
Independent reviews
In-depth tests by riders and magazines, on their own sites. We link to them; the verdicts are theirs.
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2000 Miles of notes on the AFS 75cm Skinny UHM Mast.
Tested: 75cm Skinny UHM mast with Silk and Ultra front wings
Pros
- Very short 100 mm chord makes foils turn tighter and quicker rail to rail
- 12.8 mm thin: best average speeds, longest glides and lowest heart rate recorded
- No ventilation in 2000 miles with Silk, Ultra and Enduro foils
- 3-year AFS warranty and no-fuss customer service
Cons
- Less stable than a deeper-chord mast in turbulence and at high speed
- Punishes poor pumping technique
- Wide-span foils can feel twitchy; tail choice becomes critical
- A learning curve for beginners
Verdict: The reviewer's favourite mast for carving; best for intermediate-to-advanced riders who like to tune.
Pros, cons and verdict summarised by foil.guide from the article, fetched 2026-09-25
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10,000 miles of notes on mast selection: Searching for perfection.
Tested: Masts from AFS, Cloud IX and third-party makers
Pros
- AFS 75cm Skinny UHM: speed, glide and manoeuvrability that lift the whole quiver
- Short chord makes wide-span foils far more playful
- Thin UHM masts logged 15–16% higher average speeds than the thickest mast in the dataset
Cons
- Short-chord masts make pumping more technical
- Less secure at top speed and in turbulence than 115–120 mm chords
- The reviewer would still like the 75cm Skinny a little stiffer
Verdict: A guide to choosing a mast; for carving-focused riders the thin, short-chord AFS 75cm Skinny UHM comes out on top.
Pros, cons and verdict summarised by foil.guide from the article, fetched 2026-09-25
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AFS Mast Options: Physical Attributes and Comparisons for Wingers: AFS 75cm, 80cm, and No Limitz 78cm.
Tested: AFS 75cm Skinny UHM, AFS 80cm UHM, No Limitz 78cm
Pros
- AFS 80cm UHM: the stiffest, best-balanced all-round AFS mast, confidence in any turbulence
- AFS 75cm Skinny UHM: fastest in the test with the tightest turning and least drag
- Measured thickness, chord and weight for each mast
Cons
- 75cm Skinny: slightly less stiff and less stable at high speed; needs clean pumping
- 80cm UHM: tied for heaviest in the test
Verdict: The 80cm UHM for anyone; the 75cm Skinny for intermediate-to-advanced riders who prioritise manoeuvrability and speed.
Pros, cons and verdict summarised by foil.guide from the article, fetched 2026-09-25