




ASSIST MAX COMPLETE
All the required Foil Drive components to go with an Armstrong Carbon Integrated Mast.
This DOES NOT include the Armstrong Integrated Mast itself, please see your local Armstrong Dealer to purchase the Mast.
The perfect bundle to suit your Armstrong Carbon Integrated Mast is:
- Foil Drive Assist MAX
- High Power Battery
- Integrated Mast High Power MotorOPTIONAL
- Option to choose a External Antenna recommended for all Armstrong Boards
- Option to add M7 Mast Plate Split Bolts for easy installation to Armstrong gear
THE ULTIMATE IN HYBRID ELECTRIC ASSIST FOILING
The Foil Drive Assist MAX is the flagship model and, as the name suggests, the Assist MAX offers the maximum thrust, run time and versatility!
It’s perfectly suited to those looking for extra thrust for heavier riders or smaller boards and foils, longer ride times and ultimate flexibility of how you choose to foil.
Surf, Wing, Downwind, Wake and Flatwater, the Assist MAX does it all!
The kit includes everything you need to turn your existing hydrofoil and board into an electric assisted foiling machine:
THE PACKAGE

UNIVERSAL MAST ADAPTER
Suits 99% of foil masts available
The unique design features six sized “keys” that are to be installed into the front of the adaptor to allow for fitment of all different sizes and shapes of mast between 90mm and 150mm.
INCLUDES
- 1x Large Nose Adaptor Piece
- 1x Small Nose Adaptor Piece
- 1x Rear Adaptor Piece
- 6x Keys (Various Sizes)
Note: A very small number of masts exceed the 150mm limitation and require a custom mast adaptor. Known masts include:
- Neil Pryde Glide Wind

V2 MOTOR SYSTEM
With 20cm (8″) cable length as standard.
Cable lengths are easily interchangeable for ultimate customization with the new Removable V2 Motor Cable
V2 Motors mount externally to your mast and feature a removable cable. This means you can easily change motor height through simple removal and installation of different cable lengths!
Cables are available in 6 lengths:
- 12cm (4.7″)
- 15cm (6″)
- 20cm (8″)
- 25cm (10″)
- 60cm (23.5″)
- 70cm (27.5″)

BLUETOOTH CONNECTIVITY TO THE FOIL DRIVE MOBILE APP
Available on both Android and IOS, the app allows you to tune and make changes to your Foil Drive Gen 2 systems.
- Choose your Power Mode
- Adjust Boost Mode percentage – The Boost Mode allows the user to add EXTRA Boost Power for the first 12 seconds of a Take Off.
- Change Latency – The time it takes for the motor to cut out when the connection between the Foil Drive and Controller is lost.
MAX HIGH POWER BATTERY

The Pinnacle of Performance and Technology!
Take your foiling to unprecedented heights with the MAX High Power Battery, the ultimate evolution in our High Power Range, designed exclusively for the Assist MAX System. Utilizing cutting-edge battery technology, this powerhouse packs significantly more capacity into the same compact size as the current MAX Power Battery, just 100g heavier.
- MAX Sport: 332.64 Wh
- MAX Power: 498.69 Wh
- MAX High Power: 594 Wh
That’s over 19% more capacity compared to the MAX Power Battery, giving you longer ride times and more adventures without compromise. Pair it with the High Power Motor for Maximum Performance! When combined with the High Power Motor, this battery unlocks the system’s Maximum Boost Mode of +28% (128% throttle). Enjoy unmatched power, extended runtimes, and the ability to push the boundaries of what’s possible. With 19% added capacity of the Battery, PLUS the added efficiency of the High Power Motor, combined a rider can see up to 40-45% runtime increase! This battery isn’t just an upgrade, it’s a revolution. Experience the perfect blend of compact design, lightweight construction, and maximum performance to elevate every foiling session.
- Step up to the MAX High Power Battery and redefine your foiling potential!
- Maximum Boost: The only battery to unlock the full 28% !
- Maximum Boost Time: 18 Seconds
Only compatible with Foil Drive Assist MAX. It is important to properly care for your Foil Drive battery. Click here to learn about lithium battery use, care and storage.
HIGH POWER V2 MOTOR COMPLETE

Increase your runtime and enjoy more low end torque with the High Power Motor!
Through improved efficiency, the motor uses less power, resulting in more time on water. Additionally, the motor has an increase in low end thrust, meaning you get a little more when taking off. These benefits do result in slightly less top end speed, and do increase weight, but only by 130g! A small compromise for an additional 20% runtime.
V2 Motors
The V2 Motor features a sleeker, more hydrodynamic design. With a 10mm extension to the Motor, it now accommodates a motor plug and offers added versatility with Removable v2 Motor Cables to easily change cable length. When used in conjunction with the Foil Drive Universal Motor Pods and Mast Adaptors, this motor is compatible with almost any foil mast on the market!
The Cable
The complete set includes a full V2 Motor with 20cm / 8″ removable Cable.
THREE BLADE PROPELLER UPGRADE

Looking for just a little more torque to get out of the water easier?
Designed to increase low end thrust, the Three Blade Propeller Hub is an optional upgrade for Foil Drive Assist PLUS units, a game changer for riders pushing the limits of rider weight, board size and foil size. When compared to the standard Two Blade Propeller system, the NEW Three Blade Propeller system improves performance by:
- Increased low end thrust
- More torque at lower RPM, avoiding propeller cavitation under high load
- More effective surface driving when the props breach the surface
- A smoother, quieter ride
- It is specifically designed for riders who require more low end torque, whether this is due to using a low volume board, a smaller or higher aspect foil than normal, or being a heavier rider.
We do not recommend using the Three Blade Propeller Hub for prolonged efoiling at full throttle as this will drain your battery much quicker, and could cause the electronics to overheat and enter thermal protection mode. Note: – Not compatible with Foil Drive Assist. While they do fit, these propellers require the higher RMP of the Assist PLUS in order to improve performance. -Three Blade Propeller Hubs must be used with three propellers!
Back to EFOILS
Only logged in customers who have purchased this product may leave a review.
SHIPPING WITH BIG WINDS
Rates, Common Questions, and Our Fastest,
Safest, Money Saving Board Delivery Ever!

U.S. SHIPPING RATES
Rates apply to mainland U.S.
Transit time calculated in business days.
| ITEM/ORDER | 7-10 Days | 3-6 Days | Need It Quicker? | |||
|---|---|---|---|---|---|---|
| Orders Less Than $100 | $15.00 | $24.99 | By Quote | |||
| Most Orders of $100 or More | Free | $24.99 | By Quote | |||
| EXCEPTIONS | ||||||
| All Used Gear (U.S. Only) | Shipping Rate is Cited on Product Pages | |||||
| Wing Foil Boards | $99 to Nearby Major Airport Freight Facility | |||||
| Downwind SUP Foil Boards | $99 to Nearby Major Airport Freight Facility | |||||
| Windsurf & Wsurf Foil Boards (10' and Under) | $99 to Nearby Major Airport Freight Facility | |||||
| Inflatable Boards (SUP & Wing) | $50 | $75 | By Quote | |||
| Directional Kitesurf & Kite Foil Boards | $50 | $75 | By Quote | |||
| SUP Paddles | $35 | $50 | By Quote | |||
| Board Bag: Flat Day Bags | $35 | $50 | By Quote | |||
| Board Bags: Wheeled/Walled Bags | $65 | $99 | By Quote | |||
| Windsurf Sails 7.0 meter or Larger | By Quote | |||||
| Windsurf Masts 460 cm or Longer | By Quote | |||||
| Alloy Windsurfing Booms 150 cm or Larger | $35 | $50 | By Quote | |||
COMMON QUESTIONS

Where's My Order's Tracking Link?
Tracking info is shared via email within 72 hours of most orders being placed. Be sure to check spam or "Promotions" folder in your Inbox, as sometimes our messages land there.
No Tracking Info Displays on Shipper's Website ...
It can take 48 hours for tracking info to display. Rest assured, your package is en route. Make sure to enter the BOL # (Bill of Lading) with no spaces in the tracking field.

Alaska, Hawaii, Puerto Rico?
Yes, we have shipped to these locations for decades by quote. Please share your address, the item(s) you needed shipped, and if an airport cargo depot pickup is possible.
Canada and International Locations?
We ship to Canada lots, and the Caribbean some. Get a quote. We rarely ship items to Europe, Asia, and Australia as it's spendy. Quotes for international orders do not include import duties.

How Can I Be Sure My Board Arrives Intact?
Opt for our $99 "To Nearby Airport" shipping option at checkout. It relies on passenger planes, and offers our safest delivery. More far below.
What if My Board Arrives Damaged?
We'll work with our shipping partner to get you a repair credit or a replacement board. Please send photos of the damaged board (and box) to shipping@bigwinds.com.

My board made it ...
But no foot straps, fins, or vent plug?
Look closely through the packaging. Fins, foot straps and vent plugs are often concealed in a sheath of cardboard that's easy to discard. Also, check inside the board box, and shake the box to be sure. You'll likely dislodge a small box containing the missing items.
HOW WE SHIP BOARDS

OPTION 1
MAINLAND U.S.
NEARBY MAJOR AIRPORT, $99
Fast
Boards depart Thursday each week, and are available for pickup Friday or over the weekend.
Safe
Minimal handling, and processing. No trucks, or gritty freight facilities. We ship using passenger planes, and direct flights when possible.
Easy
Most airport cargo depots are just far enough from main terminals to allow free parking, and easy entry. Pickup instructions and tracking info are shared via email Friday morning.
Which Major Airport is Near Me?
This link to Alaska Airlines’ options is a starting point. If no nearby options exist, we'll work with American, United and Delta airlines for a closer solution. Questions? Contact us!

OPTION 2
ALASKA, HAWAII, PUERTO RICO
NEARBY MAJOR AIRPORT, $150
Fast
Boards depart Thursday each week, and are available for pickup Friday or over the weekend.
Safe
Minimal handling, and processing. No trucks, or gritty freight facilities. We ship using passenger planes, and direct flights when possible.
Easy
Most airport cargo depots are just far enough from main terminals to allow free parking, and easy entry. Pickup instructions and tracking info are shared via email Friday morning.
Which Major Airport is Near Me?
This link to Alaska Airlines’ options is a starting point. If no nearby options exist, we'll work with American, United and Delta airlines for a closer solution. Questions? Contact us!

OPTION 3
BUSINESS OR RESIDENTIAL DELIVERY
BY QUOTE
Residential or Business Board Delivery
We'll work with freight partners for the lowest possible rate. Delivery time is 7-10 business days. Quotes typically land in the $350 - $500 range, though Big Winds will often cover a portion of this fee. Get a quote.
International Board Delivery
Board shipping rates for most international destinations are extremely pricey. But we can ship boards to Canada for as low as $275 plus duties and taxes. We can also stow your board for an upcoming Gorge visit, and help with a board bag and packing materials to ensure it flies home with you safely.


Reviews
There are no reviews yet.