Spektrum SPMXSEM1040B Firma 2-in-1 2300Kv Brushless Crawler Motor ESC 2S-3S

Spektrum Firma 2-in-1 Sensored Brushless Crawler Motor/ESC 2300Kv

Part Number: SPMXSEM1040B

The Spektrum Firma 2300Kv Sensored 2-in-1 Brushless Crawler Motor/ESC combines a 550-size brushless motor and 40A ESC into a single compact unit, making it an excellent power system for 1/10 RC rock crawlers and scale trail trucks where chassis space and clean wiring are important.

Advanced FOC (Field-Oriented Control) provides exceptionally smooth low-speed operation, precise torque control, and professional-level adjustable drag brake performance—key features for technical crawling and controlled descents.

Application

Designed for:

• 1/10 RC Rock Crawlers
• Scale Trail Trucks
• Crawler / Scaler Builds
• Applications using compatible 550-size motor mounting

Features

• Motor + ESC Integrated 2-in-1 Design
• 2300Kv Sensored Brushless Motor
• Integrated 40A ESC / 160A Burst
• Advanced FOC Control
• Excellent Low-Speed Throttle Control
• Professional-Level Adjustable Drag Brake
• RPM / Throttle Matching
• Compact 550-Size Design
• Waterproof & Dustproof Design
• 2S–3S LiPo Compatible
• 6–9 Cell NiMH Compatible
• Adjustable 6V / 7.4V BEC
• 4A Continuous BEC
• Programmable
• Firmware Updatable
• Over-Current Protection
• LiPo Low-Voltage Cutoff
• Thermal Protection
• Failsafe Protection
• Factory-Installed IC3 Connector
• EC3 Battery Compatible
• Ready to Install – No Soldering Required

Includes

• (1) Spektrum Firma 2300Kv Sensored 2-in-1 Motor/ESC
• (1) Product Manual

Needed to Complete

• 2S or 3S LiPo Battery with IC3 or EC3 Connector
• Compatible Receiver
• Transmitter
• Compatible RC Crawler / Scaler

Battery, receiver, transmitter, vehicle, and charger are NOT included.

Specifications

• Application: 1/10 Rock Crawler / Scaler
• Motor Type: Sensored Brushless
• Motor Size: 550
• Kv Rating: 2300Kv
• Poles: 4
• Input: 2S–3S LiPo / 6–9 Cell NiMH
• Continuous Current: 40A
• Maximum Burst Current: 160A
• BEC: 6V / 7.4V Adjustable
• BEC Continuous Current: 4A
• Battery Connector: IC3
• EC3 Compatible: Yes
• Diameter: 1.46" / 37mm
• Length: 2.28" / 58mm
• Shaft Diameter: 0.125"
• Shaft Length: 0.62"
• Weight: 201g / 7.09 oz including wiring and plug
• Programmable: Yes
• Forward / Reverse: Yes

⚠️ Important

THIS LISTING IS FOR THE SPEKTRUM FIRMA 2300KV 2-IN-1 MOTOR/ESC SYSTEM ONLY.

This is an integrated system—the ESC is built directly into the motor assembly, reducing chassis clutter and eliminating the need to mount a separate ESC.

The unit comes with an IC3 battery connector already installed, so no soldering is required for use with compatible IC3/EC3 batteries.

Vehicle, battery, charger, radio system, and accessories shown in pictures are NOT included.

Pictures are for reference only.

Please verify motor dimensions, shaft size, battery voltage, gearing, and vehicle compatibility before purchasing.