The Foil Assist Set AL includes the following items:

Foil Assist Set AL

Made of lightweight aluminum and 84cm long, the eMast AL is incredibly rigid and offers a direct feel. The motor is fully integrated into the mast and positioned slightly behind the leading edge, 17cm below the top plate, to minimize drag even during landings. It features a folding two-blade propeller that reduces drag for effortless gliding on the wave. Thanks to the integrated gear system, the propeller deploys instantly and ensures a smooth transition when leaving the wave and picking up speed again. The eMast mounts to your board like a regular foil mast.

Note: To mount a fuselage, a fuselage adapter is required. In addition to the Duotone adapter, we offer ten other options for combining the Foil Assist with your existing foil setup. The adapter is not included and must be purchased separately.

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

E Harness Set

The Foil Assist is powered by two compact batteries housed in a waterproof case attached to a lightweight harness (approximately 8 lbs). This keeps the board lightweight and free of drag. With the batteries positioned on the rider, the natural, fluid feel of foiling is maintained without compromising freedom of movement. The harness is buoyant and easy to remove. A cable runs neatly along the board’s short leash and connects the batteries to the eMast. The integrated receiver ensures a stable and reliable connection between the remote and the motor throughout the session.

E Remote Watch Ring Set

The Foil Assist remote—a waterproof, smartwatch-style controller with a finger ring—frees your hands, making it easy to launch, paddle, duck dive, carve, or wingtip. Activate the motor by double-clicking the + button and control the speed by holding down the + or – button.

Battery Charger Set

The charger can fully charge both batteries in under an hour and includes a discharge function that helps maintain long-term battery health.

Battery set suitable for air travel

Depending on your skill level, setup, and conditions, the Foil Assist batteries offer 30 to 60 minutes of run time per charge.

Measurements and Specifications: