Spektrum RC Firma 4685 Sensorless Brushless Motor (1450kV) (4-8S)

The Spektrum™ Firma 4685 4-Pole Sensorless Brushless Motor is a high-performance replacement motor designed for the Arrma® Limitless 120 platforms. It's also an excellent option for other compatible platforms such as the Infraction 6S BLX when running on 6-8S power. Built for strength, efficiency, and smooth operation, this brushless motor delivers reliable torque and consistent speed for demanding RC applications.

About the Firma 4685 Brushless Motor

Precision & Power

Featuring a four-pole rotor design, the Firma 4685 provides superior torque and throttle response. Its CNC-machined aluminum housing ensures optimal heat dissipation and durability, while insulated high-purity copper windings promote efficient power transfer. The eight-millimeter alloy steel output shaft provides extra strength and smooth rotation, reducing wear over time. With preinstalled gold-plated bullet connectors, installation is quick and hassle-free, getting you back on the track faster.

Features:

• 4-8S LiPo power compatible for versatile performance
• 4-pole rotor design delivers strong torque and smooth control
• CNC-machined aluminum housing improves cooling and durability
• Insulated high-purity copper windings enhance efficiency
• 8mm alloy steel output shaft ensures strength and reliability
• Preinstalled 6.5mm gold-plated bullet connectors for easy setup