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Zoom Stellar 18' Sit-On-Top (S18S X)

Stellar 18' Sit-On-Top (S18S X)

Length: 17' 11" / 5.48m — Beam: 20.2" / 51.2cm

  • Speed

  • Stability

£2,700.00 (inc. VAT)
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The S18S X uses the S18S G2 platform and reduces weight and price by eliminating hatches.

With its fast hull shape and narrow catch, the light weight of the S18S X can give you the edge in your next race. The rocker profile is optimized for efficient paddling and catching waves. All done without losing any stability and staying within USCA fast sea kayaks regulations. The DeBrito bailer makes for dry starts, paddles and rapid water removal. Under-stern/over-stern fittings, side handles, water bottle holder, carbon handles at each end, leash attachment and deck bungees still come standard on the Stellar S18S X. Making this a boat you need to put in your fleet.

Colour Options

Our boats are available in a wide range of colour options. To learn more about customising your boat visit our boat customisation page here.

Lead Time & Delivery

Lead time can vary depending on the model and colour chosen. Please enquire for lead times. You can also see our current inventory here.


Length: 17' 11" / 5.48m

Beam: 20.2" / 51.2cm

Depth: 13.3" / 33.7cm

Paddler: 5'-6'6" / 1.5-2m

Capacity: 285 lbs / 130kg

Bow Storage: 10.3 Gal / 39 L

Stern Storage: 23.7 Gal / 89.6 L


Flush Mount Debrito Bailer

Optional Surf Ski Back Band

Surf Ski Carbon Bow Handle

Rounded Seat and Cockpit Handles

Surf Ski Footbrace Close Up

Surf Ski Over Stern Rudder

Narrow Catch Cut-Away

Stern Hatch


Over Stern Steering

Easy change to over stern steering, with rudder post and steering line tubes per installed.


Ergonomic seat with rounded back for good rotation, low hump and integrated water bottle holder, cockpit handles and lock bar.

Refined Bow

Peaked deck helps to shed water in the rough stuff and allows for a much more narrow catch. Optimised hull in the bow greatly reduced drag, but keeps stability.

Bow & Stern Handles

Ergonomic carry handles for a comfortable haul to and from the water.

Storage Compartments

2 water tight storage compartments with bulkheads.

Foot Brace

3-point foot brace allows for a powerful leg drive and easy responsive steering with toe padels.

Under Stern Rudders

Various sized carbon rudders for efficient steering for any condition.

Low Volume Cockpit

DeBrito bailer makes for quick draining of the cockpit when underway or close it for flat or cold water paddling.

Stability & Speed

Designed around the USCA 18' Kayak regulations with long and efficient hull lines and a slender bow for low form and wave drag for a smooth and fast running hull.

Construction Options

12.5 kg

Alpha - Woven

Extremely stiff and light - The ultimate paddling machine that is also easy to move off of the water. Clear finished, heat cured epoxy woven Toray 3k Carbon Fiber laminate with Nomex® Honeycomb Core.

13 kg


Very stiff and light, yet more affordable than the Alpha. Kevlar® adds impact strength to the laminate - Gelcoat finished heat cured epoxy Kevlar® and Fiberglass laminate with Nomex® Honeycomb Core. Great for racing, or those looking for a light boat, but not as impact resistant as the Multi-sport or Advantage constructions.

16 kg


Single skin laminate hull made of Carbon & Kevlar® fabric, with clear gelcoat finish, and the deck is the standard Advantage construction. The hull is designed to be flexible and durable, but creates a stiff boat that can take some abuse in class I and II rapids and shallows, but is also at home in the ocean or the flats. The Surf Ski Multi-Sport construction comes standard with an over-stern rudder, as well as a flush mounted Andersen Super mini-bailer.

16.3 kg


Great combination of weight, stiffness, durability and cost. Gelcoat finished heat cured infused epoxy Fiberglass and Soric® core laminate is very tough and resists against punctures. A great race boat on a tight budget. The Advantage hits the mark for price to weight ratio for most kayak paddlers.

The Stellar Difference

The difference is in the details. At Stellar, we realise that all materials are not made the same and premium materials help make a superior boat. From Dupont Kevlar, Toray Carbon, Lantor Core and 3M finishing materials, we realize that these materials may cost more, but provide you with a superior boat in mechanical strength, aesthetic finish, optimal weight and consistent performance. We process those superior materials, by using epoxy resin, heat curing, vacuum and infusion to create the some of the best boats on the market.

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