Duotone Electric ᐅ The Highlights of our Foil Assist

THE DUOTONE FOIL ASSIST

Spend more time foiling, linking waves, trying new maneuvers and disciplines, and experimenting with different foil setups.

How does the Foil Assist compare to an eFoil?

The Foil Assist combines the advantages of an eFoil with those of a traditional foil setup, creating a versatile hybrid experience. It features a lightweight and highly agile design with a mast equipped with a motor and propeller. The electric propulsion allows you to easily lift off the water, navigate to the waves, and catch them with ease. Once you're up on foil, you can simply switch off the motor and enjoy the ride, letting the swell or wave carry you.

In comparison to an eFoil, the Foil Assist offers less power and runtime, but it still provides great assistance and enjoyment for riders of all skill levels.

The Duotone Foil Assist comes in three mast options with fixed motor positions. On the carbon and aluminum assist masts, the motor is positioned high, making it easy to motor out to the waves, match the wave’s pace and get on foil. For those beginning their foiling journey or seeking a setup that excels on flat water and in small waves, we also offer a Cruise version. This aluminum model features the motor mounted low on the mast, similar to an eFoil, keeping it in the water at all times. This design allows for smooth foiling on flat water.

THE HIGHLIGHTS

When we set out to develop the Foil Assist, we focused on what truly matters to you: powerful assistance, a lightweight and maneuverable setup with low drag. We aimed for a system that is not only highly modular and air travel-friendly but also easy to assemble, operate, and maintain. Curious about how we made it all happen? Let us take you through the details!

Edgar Ulrich with Midfish SS26 and Foil Assist Mast Cruise AL

FULLY INTEGRATED MAST
for excellent performance & easy assembly

The motor pod is integrated at a fixed position on the mast (assist position: 17 cm below the top plate, cruise position: 15 cm above the fuselage). A clean leading edge, internally routed cables and hydrodynamic motor pod shape ensure optimal glide even during touchdowns and maximum maneuverability.

BATTERY HARNESS
for less drag & weight

To keep the board-foil setup light and perfectly balanced, we have integrated the batteries into a lightweight waist harness. The harness allows for a full range of movement, making it ideal for extended or high-performance sessions, while the plug-in battery system makes installation and swapping effortless. Additionally, the placement of the batteries on the body offers another significant advantage: optimal signal transmission to and from the remote, resulting in consistent power output.

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WATCH RING REMOTE
for hands free riding

The Foil Assist Remote - a waterproof smartwatch-style controller with a finger ring - keeps your hands free for paddling, duckdiving, carving, or wing handling. Activate the motor with a double-click, then fine-tune your speed with simple plus and minus controls.

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POWERFUL MOTOR WITH FOLDING PROPELLER
for maximum power and low drag

The motor is compatible with all three mast options and delivers exceptional torque and thrust. Atop the motor is a bell with two folding propeller blades (available in plastic or aluminum). The folding gear propeller minimizes drag for effortless glide on the wave. Its integrated gear system allows the two-blade propeller to unfold instantly, delivering a seamless transition as you kick out of the wave and power back out.

The Cruise Mast also includes a propeller guard for added safety.

STANDARD TOP PLATE & FUSELAGE ADAPTERS
for maximum compatibility with Boards and Foils from different brands

Our assist masts are compatible with all foil boards using standard US foil tracks. The D/LAB mast features a molded 3BS fuselage connection, making it compatible only with Duotone foils and the specially designed fuselage for Armstrong foil users. The alloy masts are compatible with foils from Duotone and ten other brands thanks to special adapters (not included in the sets).

SHORT CHARGING TIME
to get back on the water as quickly as possible

The Charger can fully charge your two batteries in an hour or less, allowing you to get on the water quickly. It also features a discharging function to maintain the batteries at an optimal storage level of 40–60%. The Charger comes with a regional plug and adapters suitable for specific regions, including the EU, U.S., Australia, and the UK.

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THE MIDFISH
offers several advantages in combination with the Foil Assist

Compatible with most foilboards, the Foil Assist fits seamlessly into your current setup — and pairs perfectly with the Duotone Midfish board. Available in four sizes (38 to 78 L), the Midfish is surf-oriented and super playful in waves and bumps. Its mid-length shape with a narrow outline and wide fishtail gives you offset foot placement, added stability, and extra drive through takeoff. It also keeps the power cable neatly tucked and out of the way while riding. The 58 L and 78 L models offer optional front footstraps for more control and support.

CHOOSE YOUR SETUP NOW