Overview Great choice for 1/10 Scale 4WD models looking for a high RPM motor upgrade running up to 3S * (12.6v) power. Low cog 4-pole rotor design, CNC machined aluminum housing, insulated high purity copper windings, high-quality alloy steel 5mm output shaft, and high-precision bearings for high durability and smooth rotation. Preinstalled with 4mm gold plated bullet connectors for easy installation. Perfectly matched for the Firma 130 Smart ESC.
*Will work with the 85A Firma ESC, but only for 2S power.
Features - Perfect upgrade for brushed 540- and 550-size brushed motors with the same diameter and mounting pattern (vehicle must accept pinions with a 5mm bore)
- High-quality 4-pole sintered rotors
- Includes 4mm gold plated bullet connectors
- Precision ball bearings and hardened steel 5mm shaft
- SafeD-5 Pinion compatible
Firma 3900Kv 4-pole Brushless Motor Specfications:
- Integrated ESC: No
- Outer Diameter: 1.4" (36 mm)
- Input Voltage: 2-3S/12.6V
- Kv Rating: 3000Kv or more
- Motor Output Lead: 4mm
- RPM/Volt (Kv): 3900Kv
- Sensor Type: Sensorless
- Connector Type: 4mm Bullet
- Motor Class: 1/10 Scale
- Product Length: 2.35" (60 mm)
- Application: 1/10 Scale Surface
- Shaft Diameter: 0.2" (5 mm)
- Constant Wattage: 500-749W
- Maximum Continuous Current: 45A
- Motor Type: Brushless
In The Box - (1) Spektrum Firma 3660-3900kv Sensorless 1/10 Brushless Motor with 4mm Gold Plated Bullet Connectors
- (1) Product Manual
Needed to Complete - Electronic Speed Control such as the Firma 130 Smart ESC
- Brand: Spektrum
- Part No: SPMXSM3300
- Barcode: 605482767832
- Fitment: Option Part
- Fitment: Standard Part
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This item is over £100, so qualifies for free standard UK shipping!
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