Stellar · Surfski
Stellar S18SX
Shares the S18S G2 platform, a mid-to-high-volume 5.48m x 51.2cm hull, but strips the storage hatches for a lighter, cleaner deck. Rounded, forgiving cross-section with a rocker profile Stellar tunes for efficient flat-water paddling and catching waves, and a narrow catch that keeps the stroke close. Very stable for its class, so it doubles as a stepping-stone and surf-zone trainer.
- Length
- 5.48 m
- Beam
- 51.2 cm
- Deck
- 33.7 cm
- Lightest
- 11 kg
Specifications
- Length
- 5.48 m
- Beam
- 51.2 cm
- Deck height
- 33.7 cm
- Category
- Surfski
- Skill level
- intermediate
- New price
- A$4,595 · US$5,370
Layup weights
On-water profile
Both scores are rated at the hull's own design weight. How these are derived.
Suits: Flat-water fitness paddling, learning to catch runners, small-to-moderate downwind and surf-zone play; a stable stepping-stone toward narrower race skis.
Paddler weight
This hull is built around a paddler of about 90 kg. It stays workable from 79 kg to 95 kg, and sits at its best between 84 kg and 92 kg.
Derived from published hull dimensions and calibrated against manufacturer paddler limits, not taken from a marketing range. The method, in full.
Generations
Hatchless 'X' surf-trim of the S18S G2 platform: same 5.48m x 51.2cm hull as the hatched S18S Exp (Osprey) but with a streamlined deck, dual-Venturi bailer and no storage hatches, making it lighter and cheaper. Also offered as an S18SX SM for smaller-framed paddlers.
What works, and what it costs you
What works
- Very stable for an intermediate ski (51.2cm beam)
- Lighter and cheaper than the hatched S18S (Alpha ~11kg)
- Rocker tuned for catching waves; forgiving stepping-stone
Trade-offs
- Slow relative to longer, narrower race skis
- No storage hatches, unlike the S18S Exp
- High-volume hull is less efficient under lighter paddlers
What paddlers say
Stellar's own product copy says the S18SX 'reduces weight and price by eliminating hatches' on the S18S G2 platform, with a rocker profile 'optimized for efficient paddling and catching waves' (stellarkayaks.com).Reported experience
Gallery
Where to buy
Dealers in the markets we have mapped:
Values shown are Excel layup. AUD (Australian dealers, 2026): Advantage $4,095 / Excel $4,595. USD (stellarkayaksusa.com): Advantage $4,360, Multi-Sport & Excel $5,370, Alpha $6,715. Cheaper than the hatched S18S Exp (Osprey).
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