🌊 Everything You Need to Build Your eFoil. One Kit.

The Firduo eFoil Kit is a complete, matched propulsion system combining the 65162 120KV Waterproof Motor, FD75200 75V 200A Water-Cooled VESC, and VX3 IP67 Waterproof Remote — everything you need to power an eFoil, electric hydrofoil, or electric surfboard build, engineered to work together out of the box.

Skip the compatibility guesswork. This kit is pre-matched for voltage, current, and control protocol — just add your battery, board, and mast. Available in two configurations: 120KV (motor + ESC + remote) and 120KV + DIY Propeller for a complete drive system.

⚡ Key Features

• ✅ Complete Matched System — motor, ESC, and remote pre-matched for voltage, current, and protocol compatibility
• ✅ 65162 120KV IP68 Waterproof Motor — 7.2KW peak, 200A peak current, direct-drive for eFoil and hydrofoil
• ✅ FD75200 75V 200A Water-Cooled VESC ESC — 200A continuous, three-pipe water cooling, full VESC Tool configurability
• ✅ VX3 IP67 Waterproof Remote — 1.6-inch display, GPS, MOS temperature, cruise control, UART + PPM/PWM
• ✅ Wide Voltage Range: 14–75V (3S–16S) — compatible with most LiPo/Li-ion battery configurations
• ✅ VESC Open-Source Platform — full configurability via VESC Tool (PC/Mac/Linux)
• ✅ Optional DIY Propeller Bundle — add a 7-inch propeller for a complete drive system
• ✅ Suitable for eFoil, Hydrofoil, Electric Surfboard, RC Boat — versatile across high-power water sport applications

📋 Full Specifications

FD75200 — 75V 200A Water-Cooled VESC

65162 — 120KV Waterproof Brushless Motor

VX3 — IP67 Waterproof Remote Controller

📦 What's in the Box

• 1× Firduo 65162 120KV Waterproof Brushless Motor（included:3× 8.0mm Gold Bullet,1× M8 Screw Connectors）
• 1× Firduo FD75200 75V 200A Water-Cooled VESC ESC
• 1× Firduo VX3 IP67 Waterproof Remote Controller (with receiver)
  
• 1× DIY Propeller (optional — included in 120KV+DIY Propeller variant only)

⚠️ Battery, motor mount, and waterproof connectors not included.

🔗 Compatible Builds & Recommended Pairings

• eFoil / Hydrofoil boards — 120KV at 12S–16S for high-torque direct-drive foil builds
• Electric Surfboard / Jetboard — complete drive system for DIY electric surfboard builds
• RC Boat / USV — high-current VESC platform for high-speed marine applications
• Recommended Connector: Firduo 120A–250A Waterproof Power Connector — use FD06-120A for main battery-to-ESC connection
• Recommended Propeller: Firduo 162mm 2-Blade Folding Propeller — designed for 65162 threaded shaft, low-drag folding design
• Recommended Anti-Spark Switch: Firduo 200A Anti-Spark Switch — protect ESC capacitors from battery connection arcing
• Battery: 12S–16S LiPo or Li-ion pack, minimum 120A continuous discharge recommended

🛠️ Setup Guide

1. Select your variant — choose 120KV if you already have a propeller; choose 120KV + DIY Propeller for a complete drive system. Both variants include the motor, ESC, and VX3 remote.
2. Mount the motor — secure the 65162 motor into your foil mast pod or motor mount using the standard M5 screws. Route the 1300mm 8AWG lead wires through the mast or board channel, away from moving parts.
3. Connect motor to ESC — plug the 3× 8.0mm gold bullet connectors from the motor into the ESC phase outputs (A-B-C). Rotation direction can be reversed in VESC Tool — no rewiring required.
4. Connect water cooling — attach the FD75200's water cooling inlet and outlet tubes to your board's water cooling circuit. Ensure water flows through the ESC before powering on at high current. 
5. Connect battery — use a high-current connector rated for 120A+ (Firduo 120A–250A waterproof connector recommended) on the 10AWG power cable. Use an anti-spark switch or pre-charge resistor to prevent connector damage. Verify battery voltage is within 14–75V.
6. Connect VX3 receiver to ESC — for UART mode: connect receiver TX→ESC RX, receiver RX→ESC TX. Power receiver from ESC 5V BEC. For PPM mode: connect receiver signal wire to ESC PPM input.
7. Configure via VESC Tool — connect FD75200 via USB. Run motor auto-detection wizard, set current limits (200A continuous max), configure throttle curve, and set protection thresholds. Our support team can provide a pre-configured file for the 65162 + FD75200 combination on request.
8. Water test at low power — start at 20–30% throttle in calm water. Verify smooth motor operation, check water cooling flow, and confirm all connections are dry before increasing to full power.

❓ FAQ

Q1: What battery do I need, and is it included?
The battery is not included. The FD75200 ESC supports 14–75V (3S–16S). For eFoil and high-power builds, a 12S–16S LiPo or Li-ion pack with minimum 120A continuous discharge is required for full-power operation. A 13S (54.6V) pack is the most common choice for eFoil builds. Ensure your battery has a high-current connector rated for 120A+ and a BMS capable of sustaining the discharge rate.

Q2: Do I need to configure the ESC, or does it work out of the box?
The FD75200 ships with default VESC settings that will work for most builds, but we strongly recommend running motor auto-detection in VESC Tool before your first water session. This calibrates the ESC to the exact parameters of your 65162 motor for optimal performance and protection. Connect via USB (included with ESC), run the detection wizard, and save. Our support team can provide a pre-configured setup file for the 65162 + FD75200 combination on request.

Q3: Is the water cooling required, and how does it work?
Yes — the FD75200 uses active three-pipe water cooling and must have water flowing through it during high-current operation. The ESC draws water from your board's water intake (typically a small hull fitting) and circulates it through the ESC cooling channels. Without water cooling, the ESC will overheat at sustained high current. At low power (testing, slow speed), brief operation without cooling is acceptable, but always ensure cooling is active before full-power riding.

Q4: What propeller should I use, and is the DIY propeller suitable for eFoil?
The optional DIY propeller included in the 120KV+DIY Propeller variant is a 7-inch propeller suitable for initial testing and lower-speed applications. For optimized eFoil performance, we recommend the Firduo 162mm 2-Blade Folding Propeller — designed specifically for the 65162 threaded shaft with a low-drag folding design for efficient gliding. 

Q5: Can I use this kit for an electric skateboard or non-water application?
The VX3 remote supports ESK8 mode and the FD75200 VESC ESC is compatible with any BLDC motor within its voltage and current range — making this kit technically usable for high-power electric skateboard, e-bike, or other VESC-based builds. However, the water cooling system on the FD75200 is designed for marine use. For air-cooled applications, consider the Firduo FD200 Aluminum Case ESC instead.The 65162 motor requires water cooling for continuous operation; otherwise, it will affect motor efficiency or even damage the motor. If used in non-underwater environments, it is strongly recommended to install a water cooling circulation system.