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  • Brushless Motor/ESC/Receiver Combo Overview

    The Spektrum™ Firma™ Smart Brushless Motor/ESC/Receiver Combo is an all-in-one power and control solution purpose-built for 1/12-scale Losi® NASCAR AWD racecars. Designed to deliver maximum performance, this combo brings together a powerful 4500Kv brushless motor, a 30A Smart ESC, and an integrated receiver for seamless compatibility and cleaner installations. Whether you’re upgrading for speed, torque, or efficiency, this system provides reliable power delivery with real-time telemetry straight to your Spektrum Smart transmitter. It’s a convenient, high-performance package ideal for racers who want to elevate their vehicle’s capabilities.

    About the Combo

    Complete Power and Control Integration

    This combo takes advantage of Spektrum Smart Technology, allowing the ESC to deliver telemetry data like voltage, current, and temperature without needing additional modules. The 4500Kv motor offers explosive speed and acceleration, while the 30A ESC manages power with smooth and consistent control. The included receiver integrates effortlessly with Spektrum Smart transmitters, and built-in safety features like overload protection and programmable low-voltage cutoff help preserve your components during intense runs. With plug-and-play simplicity and pro-level performance, this combo is a powerful upgrade for any 1/12-scale AWD NASCAR setup.

    Features:

    • Includes ESC, motor, and receiver in one package
    • 4500Kv brushless motor for high speed and torque
    • Smart ESC with built-in telemetry support
    • 30A continuous current and 100A burst handling
    • Forward/Brake/Reverse drive modes
    • 2-Channel Spektrum receiver for simple setup
    • Overload protection for added safety
    • Programmable low-voltage cutoff
    • IC2 connector compatibility
    • Compatible with 2S–3S LiPo batteries

    Includes:

    • (1) Firma 4500Kv Brushless Motor
    • (1) Firma 30A Smart Brushless ESC
    • (1) Spektrum SR215 2-Channel Receiver

    Specifications:

    ESC

    Suggested Application

    1/12
    Motor Type

    Brushless
    Input Voltage

    2-3S LiPo (7.4-11.1V)
    Continuous Current

    30A
    Burst Current

    100A
    Dimensions (LxWxH)

    1.1×0.23×0.62in (28x6x16mm)
    Weight

    1.34oz (38g)
    BEC Voltage

    6-7.4V
    BEC Continuous Current

    BEC Peak Current

    3A
    Motor Connector

    Battery Connector

    Motor Wire

    Battery Wire

    Throttle Wire

    Programming

    Button
    Motor

    Suggested Application

    1/12
    Size

    4500Kv
    Type

    Brushless Sensorless
    Voltage

    7.4-11.1V (2-3S)
    Adjustable Timing

    No
    Watts

    Connector

    Bullet
    Dimensions (LxW)

    Shaft Length

    Shaft Diameter

    Weight

    This product was added to our catalog on June 17, 2025

    • Losi NASCAR

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