Spektrum Firma 85A Brushless Smart ESC / 4000Kv Sensorless Motor Combo

Product Features

Smart all-in-one telemetry

Fast, powerful 32-bit ARM M4 processor

Waterproof

Multiple options for easy programming:

Button programming

Smart ESC Programming Box

SmartLink USB Updating and Programmer application

Multi-point protection:

Over-current protection

Automatic LiPo low-voltage cutoff

Thermal protection

Failsafe protection

Developed and designed by Spektrum™ engineers, in partnership with the industry’s leading ESC manufacturer

Hand-picked combo for 2WD 1/10th scale surface applications running on 2s
Lipo setups

Includes high performance and durability Spektrum Firma 4000kV Brushless motor

High current adjustable BEC (6v or 7.4v @ 4 Amps)

Compact for easy installation in most applications

Ready to install — no soldering required

Rugged plastic case with mounting tabs

Aluminum heat sink for high efficiency

Cooling fan

Adjustable high-power BEC

Firmware updatable through the Smart ESC Programming Box

High heat-resistant IC™ connectors, backwards compatible with EC™ connectors

Limited 1-year warranty

Product Overview
Like every component in the Spektrum™ Smart ecosystem, Firma™ Smart ESCs combine “plug-and-play” simplicity with the ability to communicate with other Smart electronics — together, creating the best-performing RC system for your vehicle imaginable.

Firma Smart ESCs do much more than regulate power. They function like a virtual engineer inside your model, providing a direct path to the vital operating data you need to reach peak performance. Firma Smart ESCs give you an extra layer of confidence that your electronics are all operating at their best.

With Firma Smart ESCs, you’ll be better connected to your vehicle than ever before — without installing extra components that all work independently of each other. You won’t need extra wires, modules, or links. A Firma electronic speed control provides a one-wire solution for obtaining telemetry data such as RPM, temperature, battery voltage and capacity.

Firma ESCs not only gather the data but also send it to your transmitter in real time, instead of only storing it for after-run study. You’re able to adjust settings as needed to boost performance on the go. The Firma Smart single-wire telemetry solution has been tested for quality and performance by the best brands in RC. Their verdict? Smart technology is both simpler and superior!

Needed to Complete

Spektrum™ Surface Receiver

Spektrum Smart Technology LiPo Battery

Spektrum Transmitter

What’s in the Box?

(1) Spektrum™ Firma™ Smart ESC

(1) Spektrum Smart sticker sheet

(1) Product Manual