Horizon Hobby

$ 124.99 $ 145.99
Availability: 1 in stock

Firma 2050Kv Brushless Motor


The Firma 2050Kv brushless motor is a perfect option for 1/7 and 1/8 scale buggy, truggy or monster trucks with a 3S-6S LiPo powered setup. Featuring a low cog 4-pole 8-magnet rotor design, CNC machined aluminum housing, insulated high purity copper windings, high-quality alloy steel 4mm output shaft, and precision bearings for high durability and smooth rotation. Preinstalled with 4mm gold plated bullet connectors for easy installation, and perfectly matched for the Firma 150 Smart ESC.


  • Perfect upgrade for 1/7 and 1/8 scale racers and bashers
  • Safe-D Shaft provides a C-clip locking point to prevent pinion gear slip
  • High efficiency design
  • 6S LiPo power capable
  • High-quality 4-pole sintered rotor
  • 4mm gold plated bullet connectors
  • High-quality construction with precision ball bearings and hardened steel 4mm shaft
  • Specifications

    Application 1/8 scale buggy, truggy or monster trucks with 3S-6S LiPo setup
    Connector Type 4mm Bullet
    Efficiency 85%
    Input Voltage 12 - 25.2V
    Maximum Continuous Current 62A
    Motor Design Inrunner
    Motor Size 4074
    Motor Type Brushless - Sensorless
    Number of Poles 4
    Outer Diameter 1.57" (40 mm)
    Output 5050W
    Product Length 2.9" (74 mm)
    Product Weight 0.85lbs (415g)
    RPM/Volt (Kv) 1900Kv
    Shaft Diameter 0.157" (4 mm)
    Size 4074

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