Foil Drive Assist MAX+ Kit (Gen 2.5) w/ Armstrong Integrated Mast
Available on orders of $100 or more. Excludes boards and oversized items.
Shipping details Backed by REAL 30-day returnsReturn it or exchange it. Start online, then ship it back.
Details & FAQs
Talk to a REAL Pro who rides it.
Located in Cape Hatteras. No bots.Hand-picked for this item
Package includes
Foil Drive Assist Max+ (FM+ 650) Battery
Foil Drive High Power Integrated Mast Motor
Armstrong A+ System 795mm Integrated Foil Drive Carbon Mast
Armstrong Foil Drive Plate Bolts Set
From Foil Drive
This package pairs the Foil Drive Assist MAX+ with the Armstrong A+ System 795mm Integrated Foil Drive Carbon Mast. Unit, battery, integrated mast motor, mast and the Armstrong plate bolts all ship together.
The motor is built into the mast rather than clamped to it, and sits further forward than a typical mount to reduce lifting torque. Takeoffs and touchdowns are smoother, and the pod does not stall the board when it catches the surface.
Motor Position
Both versions are the same 795mm mast. What changes is how far down the mast the motor sits, measured from the board.
| 185mm | 650mm | |
|---|---|---|
| Built for | Foil assist | eFoil |
| How you ride | Power to get up, then foiling unpowered | Continuous power, riding on the motor |
| Best for | Surf, downwind, wing, wake, pump practice | Flatwater cruising |
| In the water | Low drag and well balanced once you are on foil | Stays submerged, so power delivery stays steady |
185mm is the standard foil assist position and the more common choice. Take 650mm if you are riding on the motor full time.
The mast is Armstrong specific. It uses the A+ System connection, so it fits Armstrong fuselages and front wings. Riders on another mast brand, or anyone who wants a mast that also works unpowered, should look at the Retro-Fit High Power Motor Kit.
Battery
Ships with the FM+ 650 Battery: 648Wh of 43V capacity at 3.95kg, enough for a full surf session for most riders. The FM+ 650 is shared with the Fusion, so one battery covers two setups. No adaptor is needed on the MAX+. Fusion riders add the FM+ Battery Adaptor.
Important: Gen2 40V batteries are not compatible with the MAX+. The MAX runs 40V architecture and the MAX+ runs 43V, so the two cannot share batteries or chargers.
The Assist MAX+
The MAX+ is the Gen2.5 replacement for the Assist MAX. Same compact, balanced package, with the power and electronics of the Fusion behind it.
-
43 Volt Electronics
- Higher voltage holds power for longer into the session, with less voltage drop. More punch on take-off and more usable capacity.
-
20% More Power & Thrust Than the MAX
- 35.5kg of thrust against the Gen2 MAX's 29.5kg. Downsize your foil or board, or get on plane quickly and foil at a lower throttle to save runtime.
-
Smart Battery Technology
- A Smart BMS manages the battery through use, charging and storage, with full control from the Foil Drive App.
Tech Specs
- System Voltage: 43.2V
- Battery Capacity: 648Wh
- Maximum Thrust: 35.5kg
- Peak Power (Boost): 2150W, 2.88hp
- Sustained Power: 1750W, 2.35hp
- Waterproof Rating: IP68 water and dust resistance
- Mast: 795mm, Toray high modulus carbon, Armstrong A+ System fit
- Motor Position: 185mm (foil assist) or 650mm (eFoil)
Package Includes
Your chosen motor position is selected above. Everything below is in the box.
The System
- Foil Drive Assist MAX+ Unit (in case)
- FM+ 650 Battery with carry case
- High Power Integrated Mast Motor (rotor, stator, hub and three blade propellers)
- Armstrong A+ System 795mm Integrated Foil Drive Carbon Mast
- Armstrong Foil Drive Plate Bolts Set, 4x M7 x 80mm with T-Nuts
- V3 Controller with Bump Guard installed
- 43V Standard Charger, 12amp
- 4x Titanium T40 M7 Split Bolts, silver
Controller Accessories Case
- USB-C Charge Pad and Cable
- Bump Guard Variation
- Wrist Leash
- 1.5mm Allen Key for Bump Guard removal
Tools and Hardware
- 1x T40 Driver, 1x T30 Driver, 1x 2.5mm Black Titanium Driver
- 1x Pick Tool
- 2x 15g Battery Grease
- 2x Nose Cone Rocker Pads
- 3x M4 10mm Titanium Motor Plug Bolts
- 1x Anode Replacement Kit
- Replacement O-Rings for the electronics box and motor cable
- 2x Mast Foam Track Guides
- 1x Tool Caddy, 1x Sticker Pack, 1x Microfibre Towel, User Manuals
Not included: front wing, fuselage, stabiliser and board. This package covers the drive system and the mast, for a rider already on an Armstrong A+ System foil.
Recommended for you
Explore Foil Drive
High-performance electric assist systems that seamlessly integrate with your foil setup, delivering effortless power and extended ride time for any skill level.
74 items ready to ship

