Firma 2840-4500Kv 4-Pole Brushless Motor
Spektrum -
Item No.
SPMXSM4700
$59.99
The Spektrum™ Firma™ 4500Kv Brushless Motor is the perfect replacement for the 1/12 Losi NASCAR AWD RC Racecar. This motor features a low-cog 4-pole rotor design, CNC machined aluminum housing, insulated high-purity copper windings, a high-quality alloy steel 2.3mm output shaft, and precision bearings for durability and smooth rotation.
(1) Firma 2840-4500Kv 4-Pole Brushless Motor
Developed as an upgrade for the 1/12 Losi NASCAR AWD RC Racecar
Reach speeds of up to 30MPH on 2S and extreme speeds of up to 44MPH on 3S
Highly efficient design
High-quality 4-pole sintered rotor
Constructed with precision ball bearings and a hardened steel shaft for durability
Replacement motor for the Firma™ Motor / ESC / Receiver Combo (SPMXSEMC25)
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Manuals & SupportPRODUCT SPECS
Input Voltage
Motor Size
Motor Type
Number of Poles
Outer Diameter
Product Length
Product Weight
RPM/Volt (Kv)
Shaft Diameter
Shaft Length
