Firma 1250Kv, 6.5mm Bullet Brushless Motor
$139.99
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Firma 1250Kv, 6.5mm Bullet Brushless Motor
$139.99
1250Kv Brushless Power
High efficiency 4 pole design
8S LiPo Ready
Built for high speed setups
6.5mm Bullet Plugs
Preinstalled gold plated connectors
In Stock
Extreme Brushless PerformancePower your large scale RC vehicle
Experience high-speed power with the Spektrum Firma 4985-1250Kv Brushless Motor, designed for high-voltage 8S LiPo setups in 1/7 and 1/5 scale RC vehicles. Featuring a 4-pole 8-magnet rotor and precision CNC machined aluminum housing, this RC motor delivers massive torque and durability for speed runners and heavy-duty bashers alike.
Unmatched Power & DurabilityEngineered for extreme speed runs
The Spektrum Firma 4985-1250Kv Brushless Motor is built from the ground up to deliver reliable, high-RPM performance to heavy-duty RC cars and speed machines like the ARRMA Limitless Speed Roller. Constructed with insulated high-purity copper windings, a hardened 5mm steel output shaft, and high-precision ball bearings, this brushless motor ensures ultra-smooth operation while keeping cogging to a minimum. Preinstalled with 6.5mm gold-plated bullet connectors, it pairs seamlessly with the Firma 160 Smart ESC to unleash relentless RC motor power on the track or pavement.
Motor Technical DataDetailed component and compatibility specs
Motor Type
Sensorless Brushless
Kv Rating
1250Kv
Motor Size
4985
Shaft Diameter
5mm Hardened Steel
Connector Type
6.5mm Gold-Plated Bullet
Power System Compatibility
Up to 8S LiPo
Recommended ESC
Spektrum Firma 160 Smart ESC
Rotor Design
4-Pole 8-Magnet Sintered
Housing Material
CNC Machined Aluminum
Compatible Vehicles
ARRMA Limitless Speed Roller & 1/7 to 1/5 Scale Models
Precision Engineering FeaturesHigh quality hardware for top speed
Low-Cog Efficiency4-pole 8-magnet sintered rotor for smooth throttle response
Precision HousingCNC machined aluminum heatsink case for heat dissipation
Robust Drive ShaftAlloy steel 5mm output shaft built for high torque
Factory Pre-SolderedPreinstalled 6.5mm gold-plated bullet connectors
Smooth BearingsPrecision ball bearings for smooth high-RPM operation
Scale UpgradeIdeal performance upgrade for ARRMA Limitless and 1/7-1/5 scale RCs
Frequently Asked QuestionsEverything you need to know
Is the Spektrum Firma 4985-1250Kv Brushless Motor compatible with 8S LiPo power?
Yes, the Spektrum Firma 4985-1250Kv Brushless Motor is engineered specifically to handle 8S LiPo power systems, making it an excellent choice for high-speed, large-scale RC applications.
What Electronic Speed Control (ESC) is recommended for the Spektrum Firma 4985-1250Kv Brushless Motor?
The Spektrum Firma 4985-1250Kv Brushless Motor is ideally matched with the Spektrum Firma 160 Smart ESC for optimal performance and thermal management.
Will the Spektrum Firma 4985-1250Kv Brushless Motor fit the ARRMA Limitless Speed Roller?
Yes, the Spektrum Firma 4985-1250Kv Brushless Motor is a perfect high-performance upgrade for the ARRMA Limitless Speed Roller as well as other 1/7 to 1/5 scale RC models.