F20II 1408 3750KV Brushless

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The “F20II 1408 3750KV Brushless” refers to a specific type of brushless motor designed for multirotor drones, particularly smaller-sized models such as micro or mini quadcopters. Here’s a breakdown of its key features and specifications:

1. Brand and Model:

  • F20II 1408: This indicates the brand and model of the motor. The “1408” denotes the stator size, which is 14mm in diameter and 8mm in height.

2. Brushless Motor:

  • Efficiency: Brushless motors are known for their efficiency and durability due to their design, which eliminates the need for brushes and commutators. They offer high power-to-weight ratios and longer lifespans compared to brushed motors.
  • High KV Rating: The “3750KV” rating indicates the motor’s KV (RPM per volt) value, which means it will spin at 3750 revolutions per minute for each volt applied to it. Higher KV motors typically provide higher RPM, suitable for smaller propellers and agile maneuvers.

3. Applications:

  • Mini and Micro Drones: The F20II 1408 3750KV motor is designed for use in smaller-sized multirotor drones, such as mini quadcopters or racing drones.
  • Agility and Performance: These motors are optimized for agility and performance, making them suitable for racing, freestyle flying, or acrobatic maneuvers.

4. Features:

  • Compact Size: The 14mm diameter and 8mm height make these motors compact and lightweight, ideal for smaller drone builds where space and weight are limited.
  • High RPM: With a high KV rating of 3750, these motors are capable of spinning at high speeds, providing rapid acceleration and agile flight characteristics.

5. Compatibility:

  • Propeller Size: Choose propellers compatible with the motor’s KV rating and torque output. Smaller propellers are typically used with high KV motors to maximize efficiency and thrust.
  • ESC (Electronic Speed Controller): Ensure the ESC can handle the motor’s current draw and voltage requirements. Match the ESC’s specifications with the motor’s KV rating and power output.


The F20II 1408 3750KV brushless motor is designed for high-performance applications in smaller-sized multirotor drones. With its compact size, high KV rating, and lightweight design, it offers agility, rapid acceleration, and responsive flight characteristics. When paired with compatible components and properly configured, these motors contribute to an exhilarating flying experience in mini quadcopters, racing drones, or other micro-sized UAVs.

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