Sabfoil Sea Devil – 840 Modular Hydrofoil

£799.00

SABFOIL Sea Devil 840 | Modular Hydrofoil 2-in-1

2-in-1 foil for high-performance in light to medium wind. Stability and control with stabilizer, agility and instant response without. Self-stabilizing profile, full carbon monocoque construction. Compact, fast, radical.

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Description

Everything you need to push your riding further

This full set includes the Sea Devil 840 in both tail and raw configurations, paired with the Kraken 83 cm mast—a combination designed for maximum stiffness, feedback, and modular compatibility. Whether you’re an intermediate rider seeking progression or an expert pushing the limits, this setup delivers tons of fun.

 

Two souls, one vision. Precision and speed in every condition.

Discover new lines—where others see limits.

The Sea Devil 840 is the most compact and responsive foil in SABFOIL’s light wind range. Just like the SD1040, it features a dual configuration system: rock-solid control with the tail, wild and agile without. With a smaller wingspan and ultra-fast reaction time, it’s built for riders who want control, speed, and pure fun in a more aggressive format.

 

Engineered for lighter riders and active conditions

Optimized for 12 to 25 knots, the SD840 offers lift even in lower winds with the right wing setup. Its compact, self-stabilizing profile supports tighter turns, faster acceleration, and effortless pumping. It’s also ideal for kite foil with small kites, offering unmatched maneuverability.

 

One foil, two experiences

Tail Mode – With Stabilizer

Smooth control and directional stability—ideal for progression and controlled lines.

Raw Mode – Without Stabilizer

Explosive carving, quick transitions, surf-like responsiveness. For experienced riders seeking freedom.

 

High-tech construction, no compromises

The full carbon monocoque design—no fuselage—keeps drag low and feedback high. The foil becomes an extension of your body: intuitive, fast, and precise. The included Kraken mast guarantees rigidity and compatibility.

 

Ready to ride. Built to evolve.

With the SD840 and Kraken 83 mast in one box, this set gives you an agile, high-performance platform to elevate your sessions in any light to moderate wind condition.

 

When you ride the edge of control, you’re just beginning to explore.

Specs

Component Specification Value
Front Wing Span 840 mm
Surface 2122 cm²
Volume 3824 cm³
Aspect Ratio 3.3
Root Chord 520 mm
Stabilizer Span 365 mm
Surface 192 cm²
Volume 152 cm³
Aspect Ratio 6.9
Root Chord 74 mm
Maximum Thickness 7.9 mm
Fuselage Length Not Present – Monocoque
Weight Raw Mode (approx.) 2.28 kg
Tail Mode (approx.) 2.48 kg
Additional information
Brand

Sabfoil

Size

840cm²

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Shipping & Delivery
CLICK AND COLLECT: If you are located in the UK at the checkout you will be able to select to collect from our Gosport Store COURIERS WE USE: Royal Mail for small and medium parcels DPD for medium items like kites, harnesses and iSUPs UPS, FedEx & Parcel Force for larger items like booms masts and boards DISPATCH: All items are dispatched from our Gosport store and will experience a 24hr delay where we are closed on Tuesdays. Any orders taken after 1pm on Friday and over the weekend will be dispatched on Monday. OUTSIDE UK: Please contact us if you would like something posted outside the UK. EU Postage: Currently all EU items are attracting duty fees in your country and for this reason our webstore is not setup for orders to the EU but if you would like to purchase from us please.  RETURNS: You are responsible for returning items to us and if a refund is required we will refund only the value of the item and not the postage. Returns must be made within 14 days unless the item is deemed faulty. RETURNS ADDRESS: Andy Biggs Watersports 103 Bury Road Alverstoke Gosport PO12 3PR Please make sure to include your name so we can match up with your original order DAMAGED ITEM: If an item is damaged in transit you must notify the us immediately upon delivery and let us know as soon as you can.Â