Firduo eFoil Kit – 75141 100KV 9KW Motor + 200A VESC+ VX5 Remote for Hydrofoil & Electric Surfboard

🌊 9KW Peak. 200A VESC. High-Resolution Remote. Built for Performance eFoil.

The Firduo 75141 eFoil Kit is a complete, pre-matched high-power propulsion bundle combining the 75141-100KV 9KW Inrunner Motor, FD75200 75V 200A VESC, and VX5 IP68 Waterproof Remote — engineered for performance eFoil, jetboard, and high-power electric hydrofoil builds.

The 75141 motor delivers 9KW peak / 4.5KW rated power with 50 KGF maximum thrust, 12N·m maximum torque, and a 12mm shaft — the highest-output motor in the Firduo lineup. Paired with the FD75200 VESC (200A continuous / 300A peak, IP68, USB + CAN + UART) and the VX5 remote (5,000mAh, Beidou/GPS, high-resolution display, 20 power levels, up to 20h battery life), this kit is built for riders who demand maximum performance and full configurability.

⚡ Key Features

• ✅ Complete Matched High-Power System — 75141 motor, FD75200 VESC ESC, and VX5 remote pre-matched for voltage, current, and signal compatibility
• ✅ 75141-100KV Motor — 9KW peak / 4.5KW rated, 50 KGF max thrust, 12N·m max torque, 12mm shaft, 5S–18S (21–75V)
• ✅ FD75200 200A VESC ESC — 200A continuous / 300A peak, 14–75V (3–16S), IP68 waterproof, USB + CAN + UART, regenerative braking
• ✅ VX5 IP68 Waterproof Remote — 5,000mAh / 20h battery, Beidou+GPS+GNSS, high-resolution display, 20 power levels, L/M/H throttle gears
• ✅ 50 KGF Maximum Thrust — highest thrust output in the Firduo motor lineup for demanding eFoil builds
• ✅ Full VESC Configurability — motor auto-detection, throttle curve, RPM/current/voltage/power limits via VESC Tool
• ✅ Beidou + GPS + GNSS Positioning — high-precision speed measurement and satellite count display on VX5
• ✅ VX5 Floats in Water — internal large cavity design prevents sinking; no buoyancy rope required

📋 Full Specifications

75141-100KV Inrunner Brushless Motor→

FD75200 — 75V 200A Water-Cooled VESC →

VX5 — IP68 Waterproof Remote Controller →

📦 What's in the Box

• 1× Firduo 75141-100KV Motor (with 8mm gold plug)
• 1× Firduo FD75200 75V 200A VESC
• 1× Firduo VX5 Remote Controller (with receiver)

⚠️ Propeller and waterproof connectors not included. Ensure your battery is rated for 120A+ continuous discharge for full-power operation.

🔗 Compatible Builds & Recommended Pairings

• Performance eFoil / Hydrofoil — 75141 at 12S–16S for maximum thrust and top speed; 50 KGF thrust for heavier riders and larger boards
• Jetboard / Electric Surfboard — 9KW peak power for aggressive acceleration and high-speed performance builds
• Motor Only: 75141-100KV Motor — purchase motor separately if you have an existing ESC and remote
• ESC Only: FD75200 75V 200A VESC — purchase ESC separately if you have an existing motor and remote
• Remote Only: VX5 Remote Controller  — replacement or standalone remote purchase
• Lower Power Kit: Firduo eFoil Kit – 65162 Motor + 200A ESC + VX3 Remote — 6KW peak alternative for lighter builds or beginners
• Recommended Propeller: 
• Recommended Connector: Firduo 120A–250A Waterproof Connector — for sealed battery-to-ESC connection rated for 120A+
• Recommended Anti-Spark Switch: Firduo 200A Anti-Spark Switch — protect ESC capacitors from battery connection arcing
• Bluetooth Module: Firduo FD2.4 Bluetooth Module — wireless VESC Tool if you want to configure and monitor your power system wirelessly
• Battery: 12S–16S LiPo or Li-ion pack, minimum 120A continuous discharge recommended for full-power operation

🛠️ Setup Guide

1. Verify voltage compatibility — the FD75200 ESC supports 14–75V (3S–16S); the 75141 motor supports up to 18S (75V). Use a 12S–16S LiPo or Li-ion pack for this kit. Ensure your battery has a minimum 120A continuous discharge rating for full-power operation. Do not exceed 75V (16S fully charged) on the ESC.
2. Connect motor phase wires — connect the 75141's 8mm gold plug phase wires (1,300mm extension) to the FD75200 ESC phase outputs. Rotation direction can be corrected by swapping any two phase wires, or via VESC Tool motor direction setting. Test rotation direction at low throttle before installing the propeller.
3. Connect water cooling — attach the FD75200 ESC's water cooling circuit to your board's water intake. Ensure water flows through the ESC before running at high current. The 75141 motor is fully waterproof and passively cooled by water flow during operation.
4. Connect battery — use a high-current connector rated for 120A+ (Firduo 120A–250A waterproof connector recommended). Use an anti-spark switch or pre-charge resistor to prevent connector arcing. Verify battery voltage matches your ESC configuration before connecting.
5. Connect VX5 receiver — connect the VX5 receiver to the FD75200 ESC's UART port for full telemetry (motor power, GPS speed, fault codes on VX5 display). Alternatively, connect via PPM for standard throttle control. Pair the VX5 remote with the receiver before first use.
6. Configure via VESC Tool — connect the FD75200 to your PC via USB. Open VESC Tool, click Read Parameters, run motor auto-detection for the 75141 motor, Set the motor's current limit according to your needs, and set battery current limit to match your battery's continuous discharge rating. Click Write Parameters to save. Configure throttle curve and L/M/H gear percentages in the VX5 remote settings.
7. Seal cable connections — the FD75200 is IP68 but cable connection points are not waterproof. Seal all battery, motor, and signal cable terminations with potting compound, adhesive heat-shrink, or waterproof cable glands before water use.
8. Water test at low power — start in L gear at 20–30% throttle in calm water. Verify smooth motor operation, check water cooling flow, and confirm all connections are sealed before increasing to M or H gear at full power.

❓ FAQ

Q1: How does this kit compare to the 65162 + 200A ESC + VX3 kit?
Both kits use a 200A VESC ESC, but differ in motor and remote. The 65162 kit uses the 65162-120KV outrunner motor (6KW peak) with the VX3 remote (1,500mAh, 1.6-inch display). This 75141 kit uses the 75141-100KV inrunner motor (9KW peak, 50 KGF max thrust) with the VX5 remote (5,000mAh, high-resolution display, Beidou/GPS, 20 power levels, floats in water). Choose the 75141 kit for maximum power, heavier riders, or performance builds; choose the 65162 kit for a lighter, more compact system.

Q2: What battery is recommended for the 75141 motor at full power?
For the 75141 at full power (120A motor max, 200A ESC continuous), use a 12S–16S LiPo or Li-ion pack with minimum 120A continuous discharge. Please note that when operating at full power, do not exceed the motor's rated power of 4.5KW and the maximum continuous current of 120A. For 100KV motors, the recommended voltage is 12S-13S.

Q3: What makes the VX5 remote different from the VX3?
The VX5 offers significant upgrades over the VX3: 5,000mAh battery (vs 1,500mAh) for up to 20 hours use, Beidou + GPS + GNSS high-precision positioning (vs GPS only), high-resolution display (vs 1.6-inch), 20 power levels in surfboard mode (vs standard throttle), L/M/H throttle gear presets, stores up to 11 riding sessions and 20 ESC fault codes, and floats in water without a buoyancy rope. The VX5 is also IP68 (vs VX3's IP67). Both support VESC UART and PPM protocols.

Q4: Does the FD75200 ESC support sensored motors?
Yes — the FD75200 supports sensored, sensorless, and hybrid motor operation. Supported sensor types include ABI, HALL, AS5047, and AS5048A encoders. The 75141 motor in this kit is a sensorless motor — configure the FD75200 in sensorless mode in VESC Tool for optimal startup and throttle response.Sensorless mode is recommended for smooth low-speed starts.

Q5: How do I configure the L/M/H throttle gears on the VX5 remote?
The VX5 remote supports three throttle gear presets (L / M / H), each with a configurable maximum throttle percentage. Access the gear settings from the VX5 remote's settings menu. Recommended starting configuration: L = 30% (learning/testing), M = 60% (cruising), H = 100% (full power). In surfboard mode, up to 20 discrete power levels can be configured for fine-grained throttle control. Refer to the VX5 manual or contact our support team for detailed configuration guidance.