Duotone Foil Assist Set AL

PRONE SURF / DOWNWIND

Important: The fuselage adapter is not included and must be purchased separately.

Take your foiling to the next level with the Foil Assist Set AL — a plug-and-play system that gives you extra boost exactly when you need it.

A fuselage adapter is required to mount your foil fuselage onto the eMast. In addition to the Duotone adapter, multiple adapter options are available to help you pair the Foil Assist system with your existing foil setup.

eFuselage - Armstrong - to run armstrong foil this fuselage & Duotone specific fuselage are required on the aluminum set.

Includes the following items:

eMast AL Set

Built from lightweight aluminum and measuring 84 cm, the eMast AL is incredibly stiff and provides a direct, responsive feel.

The motor pod is fully integrated into the mast and positioned slightly behind the leading edge, 17 cm below the top plate, to help minimize drag even during touchdowns. It features a two-blade folding propeller that reduces drag for effortless glide on the wave. Thanks to the integrated gear system, the propeller unfolds instantly, delivering smooth power as you kick out of the wave and motor back out.

The eMast mounts to your board just like a conventional foil mast.

Tip: For optimal battery performance, pair the eMast with a front wing of at least 900 cm² and a board with a minimum volume of 35 L.

eHarness Set

The Foil Assist is powered by two compact batteries housed in a waterproof box mounted on a lightweight eHarness, weighing approximately 3.76 kg. This keeps your board free from extra weight and drag. With the batteries positioned on your hips, the natural and fluid feel of foiling is preserved while still giving you full freedom of movement.

The eHarness is buoyant and easy to remove. A cable runs neatly along the shorter board leash and connects the batteries to the eMast. The receiver integrated into the battery box ensures a stable and reliable connection between the remote and the motor throughout your session.

eRemote Watch Ring Set

The Foil Assist Remote is a waterproof smartwatch-style controller with a finger ring that keeps your hands free, making it easier to push up on the board, paddle, duck dive, carve, or handle a wing.

Activate the motor with a double-click on the + button, then control speed by pressing and holding either the + or - button.

Battery Charger Set

The charger can fully charge both batteries in under one hour and also includes a discharge function to help maintain long-term battery health.

Air Travel-Friendly Battery Set

Depending on your skill level, setup, and conditions, the Foil Assist batteries provide approximately 30 to 60 minutes of runtime per charge.

Duotone Foil Assist Set AL specifications

If you have questions or need to coordinate an order, please call either of our stores.

Houston Kiteboarding
281-508-6485
sales@houstonkiteboarding.com

Pacific North Sports
360-794-1688
sales@pacificnorthsports.com

2026 Duotone Foil Assist Set Aluminum - Assist