Spektrum Firma 4000Kv Brushless Motor

The Spektrum Firma 4000Kv Brushless Motor (SPMXSM1400) is a 3652-size inrunner designed for 2S LiPo setups in 1/10 scale platforms. A low-cog 4-pole, 8-magnet rotor, precision bearings and CNC-machined aluminium housing deliver smooth, durable performance. Insulated high-purity copper windings and preinstalled 4mm gold-plated bullet connectors simplify installation and efficiency. It is perfectly matched to the Spektrum Firma 85A Smart ESC.

Key Features

• Low-cog 4-pole, 8-magnet rotor design for smooth throttle response
• CNC-machined aluminium housing for improved cooling and durability
• Insulated high-purity copper windings
• Alloy steel output shaft
• Precision bearings for smooth rotation
• Preinstalled 4mm gold-plated bullet connectors

Specifications

• Bushing or Bearing: Bearing
• Motor Design: Inrunner
• Maximum Continuous Current: 40A
• Motor Type: Brushless
• Input Voltage: 6 - 8.4V
• RPM/Volt (Kv): 4000Kv
• Sensored: No
• Application: 1/10 scale 4WD, 2WD, and on-road models running on 2S LiPo power
• Number of Poles: 4
• Product Weight: 7.4oz (210g)
• Shaft Diameter: 0.125" (3 mm)
• Connector Type: 4mm bullet
• Efficiency: 81%
• Motor Class: 1/10 scale
• Motor Size: 3652

Suggested Compatibility

1/10 scale 4WD, 2WD, and on-road models running on 2S LiPo power.

In The Box

• Firma 4000Kv Brushless Motor

Required To Complete

• 85A ESC