Firduo 162mm 2-Blade Folding Propeller for Efoil & Kayak & RC Boat

🌊 Low Drag. High Thrust. Built for eFoil.

The Firduo 162mm 2-Blade Folding Propeller is a precision-machined aluminum alloy propeller engineered for eFoil, kayak, and RC boat applications. The folding blade design minimizes drag when the motor is off — critical for eFoil gliding and efficient hydrodynamic performance. Aluminum construction ensures strength, balance, and corrosion resistance in both saltwater and freshwater environments.

Designed specifically for the threaded shaft of the Firduo 65162 motor, this propeller is the recommended pairing for 65162-based eFoil and electric surfboard builds. 

⚡ Key Features

• ✅ 162mm Diameter — optimized blade span for high thrust at eFoil operating speeds
• ✅ 2-Blade Folding Design — blades fold flat when motor is off, minimizing drag during gliding
• ✅ One-Piece Molded Aluminum Alloy — high strength, precision balanced, corrosion-resistant
• ✅ Threaded Shaft Compatible — designed for the Firduo 65162 motor threaded shaft
• ✅ Saltwater & Freshwater Safe — anodized aluminum resists marine corrosion
• ✅ Suitable for eFoil, Kayak & RC Boat — versatile across water sport applications

📋 Full Specifications

📦 What's in the Box

• 1× Firduo 162mm 2-Blade Folding Propeller

⚠️ Ensure correct motor for your build.

🔗 Compatible Builds & Recommended Pairings

• Recommended Motor: Firduo 65162 120KV Waterproof Brushless Motor — this propeller is designed for the 65162 threaded shaft; IP68, 7.2KW, direct-drive eFoil
• Recommended Kit: Firduo 65162 eFoil DIY Kit — complete motor + ESC + remote bundle for electric surfboard builds
• Recommended ESC: Firduo FD75200 75V 200A Water-Cooled VESC — matched for 65162 motor power range
• Applications: eFoil, electric hydrofoil, electric surfboard, kayak thruster, RC boat
• Note: Ensure correct motor for your build.If you are unsure whether the motor is compatible, please contact us for support.

🛠️ Setup Guide

1. Verify rotation direction — Confirm that your motor and propeller are compatible.
2. Clean the motor shaft — ensure the 65162 motor's threaded shaft is clean and free of debris, salt residue, or old thread-lock compound. Use a clean cloth and isopropyl alcohol if needed.
3. Thread the propeller onto the shaft — Align the propeller hub with the threaded shaft, then push the propeller in until the propeller's locating hole aligns with the motor's locating hole/locating pin. Do not cross-thread.
4. Torque to spec — tighten the propeller nut firmly using the appropriate wrench. Apply a small amount of thread-lock compound (medium strength) to prevent loosening under vibration. Do not over-torque — aluminum threads can strip.
5. Check blade fold action — with the propeller installed, manually fold and unfold the blades to confirm they move freely and snap open under rotation. Blades should fold flat when stationary and open fully under motor thrust.
6. Water test at low power — run the motor at 10–20% throttle in water and check for vibration or unusual noise. A well-balanced propeller should run smoothly. If vibration is detected, check that the propeller is fully seated and the blades are not damaged.

❓ FAQ

Q1: Why use a folding propeller instead of a fixed propeller?
A folding propeller offers significantly lower drag when the motor is off — the blades fold flat against the motor body, reducing water resistance during gliding. This is especially important for eFoil and hydrofoil builds where efficient gliding between power bursts extends ride time and improves the riding experience. Fixed propellers create constant drag even when not spinning, reducing glide efficiency.

Q2: Is this propeller compatible with motors other than the 65162?
This propeller is designed specifically for the threaded shaft of the Firduo 65162 motor. Compatibility with other motors depends on the shaft diameter, thread pitch, and thread direction. If you have a different motor, contact us with your motor's shaft specifications and we'll advise on compatibility. Do not force-fit a propeller onto a non-matching shaft.

Q3: How to determine whether a propeller is CW or CCW?
When viewed from behind the board (water-facing side), a CW propeller rotates clockwise under power and a CCW propeller rotates counter-clockwise. This is a CW propeller.Most single-thruster eFoil builds use CW. 

Q4: Can I use this propeller in saltwater?
Yes. The propeller is made from anodized aluminum alloy which provides good corrosion resistance in both saltwater and freshwater. After saltwater use, rinse the propeller and motor shaft with fresh water to remove salt residue. Periodically inspect the propeller hub and shaft threads for corrosion and apply a thin coat of marine-grade anti-seize compound to the threads to prevent galvanic corrosion between the aluminum propeller and motor shaft.

Q5: What if the propeller comes loose during use?
During installation, it is recommended to apply a medium-strength threadlocker and tighten the nut. Alternatively, use a lock nut for secure fastening.