Stoke Foil Boost Ultra Features
Stoke Foil Boost Ultra is a powerful, beautifully designed, detachable hybrid efoil that gets you foiling at the squeeze of a trigger. The Stoke Foil Boost Ultra has a sleek hydrodynamic design, powerful motor, high-capacity battery, is light weight, quick to attach, and utilises the most advanced electronics. Engineered and tested for use in the harshest marine environments, the Stoke Foil Boost Ultra is designed to get you foiling more.

The high powered battery will provide 30 minutes of continuous use as an eFoil or easily 85 boosts as a foil assist (dependent on the gear and rider). That’s eighty five waves caught or an amazing flat water ride. It only takes seconds to change to another battery if you want to ride longer.

High spec materials are used to keep the Stoke Foil Boost light and powerful. The total weight is just 5.5kg. Protecting your Stoke Foil Boost when not in use is a high-quality EVA case.


The Stoke Foil Boost Ultra is engineered for performance. It is powered by an all new purpose built motor capable of a massive 68lbs (31kg) of thrust, coupled with advanced cooling technology and a super smooth startup.

Universal mast mount fits 99% of masts and can be fitted or removed in less than one minute.

The twin blade marine grade aluminium folding propeller shape is computer engineered to maximise acceleration and boost performance.

The intuitive wireless controller is designed for all foiling disciplines. It attaches to your paddle, wing or can be handheld.

Ultra comes standard with the Series 2 Remote


Electronics are packed with features designed for the toughest marine conditions, delivering an instant response and a smooth crisp throttle.
ULTRA SMART BATTERY
The Stoke Foil Boost Ultra’s high-performance battery provides high-capacity, high-density power storage. Battery attachment is via a quick and secure external locking ring for easy battery changes.
Our advanced Battery Management System (BMS) provides longer battery life, more power when you need it and has specifically designed safety features including temperature monitoring and over voltage protection.
A convenient charge Level Indicator is placed on the internal battery face. This allows you to check the voltage without connecting the battery to the Drive Unit – ideal to know whether a charge is required before heading to the beach.

UNIVERSAL MAST MOUNT
The Stoke Foil Boost Ultra universal mast mount fits 99% of masts, aluminium or carbon using small interchangeable silicon rubber side pressure pads. The universal mast mount can be fitted or removed from any foil mast in less than two minutes.
Attaching the Drive Unit is simple using the one-piece mast mount clamping plate. The captive attachment bolts mean that you will never drop them in the sand, and they provide an even spread of pressure along the mast. There are also keyways included on the clamping plate to ensure you always have the specially shaped side pressure pads in the right orientation.
The soft interchangeable side pressure pads ensures that force isn’t placed against the thin more fragile trailing edge of the mast. The mount is firm and won’t move unexpectedly on your mast, even in the most extreme manoeuvres or dismounts.

FOLDING PROPELLER
Propulsion is delivered via a 2 Blade 188mm diameter folding propeller (55mm diameter folded).
The Stoke Foil Boost Ultra’s blade shape is computer engineered to maximise torque and boost performance. It has been refined through hundreds of hours of testing. The hydrodynamic propeller housing is designed to minimise drag and the propellor automatically folds away when the boost is not engaged.
The marine grade aluminium blade construction and silicon rubber blade opening impact absorbers add strength and durability.

MOTOR
The Stoke Foil Boost Ultra is powered by a custom designed brushless motor capable of an impressive 68lbs of thrust. Designed and engineered for longer use and higher top speed than the regular Foil Boost motor, without sacrificing the acceleration that the Foil Boost is renowned for.
The motor also incorporates a bespoke internal mounting so that power generated is transferred into forward propulsion and not sideways flex.

WIRELESS CONTROLLER
Designed from the ground up for ultimate control and comfort, the Series 2 Remote is lighter, more ergonomic, and packed with innovative features.
- Unmatched ergonomics: Whether you’re winging, surfing, SUP foiling, or prone foiling, the Series 2 Remote fits comfortably in your hand. Attach it to your boom or paddle with the detachable mount, or use it handheld. The redesigned trigger provides intuitive control in all situations.
- Enhanced performance: Dial in your perfect ride with adjustable throttle sensitivity and a customizable fifth power level.
- Increased safety: The safety lock timer prevents accidental use, while wireless charging and IP68 waterproofing offer convenience and peace of mind.
- Clearer display: The new circular screen is brighter and easier to read in sunlight.
- Robust design: Built to withstand the demands of foiling with durable construction and advanced electronics.
- Reliable connectivity: Experience a stronger, more stable connection with a 150% stronger transmission signal.

ELECTRONICS
The Stoke Foil Boost Ultra’s all new electronics are purpose designed and expertly configured based on a higher voltage architecture. The Smart Electronic Controller integrates, interprets, and manages all the data and inputs coming from the BMS, motor, remote and receiver to ensure you don’t need to think about your next ride. It just works faultlessly every time you need it.
There are layers of built-in protection. Protection that you won’t see but do need such as low voltage protection, high voltage protection, over-current protection, temperature abnormality protection, over-temperature protection and signal loss protection.
We only use the highest quality components and chipsets to ensure fast processing delivering instant response and a smooth crisp throttle.

RECEIVER AND CABLING
This compact receiver is designed to work with any board, providing a reliable connection and seamless control for all foiling disciplines.
- Universal compatibility: Mount it under your board or on your deck – it adapts to any board and riding style with ease.
- Effortless installation: Installing your receiver takes less than 30 seconds. Simply slide it into the track for underboard mounting, or use the included deck mount for carbon fiber setups.
- Enhanced performance: Enjoy a reliable, responsive ride with a stronger signal and enhanced software for smooth throttle response and confident handling.
- Suits how you foil: Adjustable cable length lets you position your drive unit anywhere on the mast.
- Reliable operation: Robust design and improved signal connectivity ensure a smooth and dependable foiling experience.

CARRY CASE
Protecting your Stoke Foil Boost Ultra when not in use is a high-quality EVA case. The CNC cut foam holds the components securely and is great for storage and travel.

