Electric Foil Assist System — Prone | Downwind | Wake | Wing Foil

Available at Wake-Style.com – Europe’s Foiling Specialists

The Ultimate Electric Assist for Foiling — Now With the Lightweight eMast AL

The Duotone Foil Electric Package (eMast AL Edition) combines power, control, and seamless integration to elevate your foiling sessions. Whether you ride downwind, prone, wing, or wake foil, the eMast AL gives you earlier takeoffs, longer glides, smoother transitions, and effortless acceleration—all without compromising the natural feel of your foil.

The AL version is built around an 84 cm lightweight aluminum mast, engineered for stiffness and direct feedback. With the motor pod fully integrated into the mast profile, the system delivers a clean, drag-optimized design that feels intuitive and responsive from the very first session.

⭐ Highlights

Drag-Optimized Integrated Motor Pod

The motor pod sits just 17 cm below the top plate, slightly behind the leading edge to reduce drag, even during touchdowns. Internally routed cables keep the profile clean and hydrodynamic.

Instant-Unfold Folding Propeller

The two-blade folding prop opens automatically the moment the motor activates, and folds instantly when the throttle is released—ensuring effortless glide, wave riding, and smooth power re-engagement.

Stiff 84 cm Aluminum Mast

The eMast AL is extremely stiff for direct handling, improved pumping, and stable high-speed control. It mounts to any board like a standard foil mast using US tracks.

Complete Electric Foil System

The package includes the eMast AL, lightweight eHarness, intuitive eRemote Watch Ring, battery charger, and travel-friendly batteries—everything you need to start riding with power assist.

What’s Included in the Foil Assist Set AL

1. eMast AL – 84 cm Aluminum Mast with Integrated Motor

• Lightweight, ultra-stiff AL construction

• Fully integrated motor pod: low drag, balanced feel

• Folding propeller with instant deployment

• Mounted exactly like a standard foil mast

• Ideal for prone, downwind, wake, and wing foiling

• Note: A fuselage adapter is required (sold separately)

• Tip: Use with a 900+ cm² front wing and a board of 35+ L for best battery efficiency

2. eHarness Set – Lightweight Battery Waist System

A clean and perfectly balanced setup that keeps your board free from extra weight.

• Two compact batteries stored in a waterproof hip-mounted box

• Approx. 3.76 kg total harness weight

• Ergonomic, comfortable design for long sessions

• Built-in receiver ensures flawless signal from remote to motor

• Buoyant, easy to put on and remove

• Short board leash with neatly integrated cable

• Zero interference with paddling, duck-diving, wing handling or carving

3. eRemote Watch Ring Set – Hands-Free Control

A waterproof, smartwatch-style remote that keeps your hands free.

• Finger ring included for effortless engagement

• Double-click + button to activate motor

• Hold + or – to control speed

• Perfect for paddle-ups, wave takeoffs, wing handling, and carving

• Responsive and intuitive design for natural control

4. Battery Charger Set – Fast Charging and Long-Term Protection

• Charges both batteries in under 1 hour

• Includes discharge function to extend battery lifespan

• Intelligent power regulation for consistent performance

5. Air-Travel-Friendly Lithium Batteries

Duotone’s high-voltage LHV batteries are engineered specifically for the Foil Assist system.

• 7 Ah – 159.6 Wh each (airline-compliant)

• Runtime: 30 to 60 minutes depending on foil size, weight, and conditions

• Durable: 450–650 cycles with proper care

• Two batteries required per session

⚙️ Compatibility

The Foil Assist AL system works with:

• All foilboards using US foil tracks

• All major foil brands via dedicated fuselage adapters
  (Duotone, F-One, Armstrong, Axis, Lift, Gong, AFS, SAB, KT & more)

• Duotone offers 11 fuselage adapter options for maximum compatibility

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

⚡ Performance Summary

With the eMast AL, you get:

• Early electric lift for easier takeoffs

• Power assist to catch more waves

• Increased glide and downwind range

• Safer, drag-free wave riding with folding prop

• Hands-free riding with watch-style remote

• Lightweight feeling thanks to the hip-mounted batteries

This is the most natural-feeling electric assist available — perfect for riders wanting a boost without the bulk and weight of a traditional e-foil.