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Spektrum Firma 2 in 1 Brushless Cr (Spektrum XSEM1040B | SPMXSEM1040B)

Model: Spektrum XSEM1040B
Dist. #: SPMXSEM1040B   SKU: SPMXSEM1040B

Customer Reviews: Rated 4.0 stars 4 of 5 (1 Review)

Shipping: In Stock For Shipping
Store Pickup:

South Jordan, UT
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Price:  $199.99

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Updated on Jan 12, 2026 10:59:10 AM

Firma 2 in 1 Brushless Cr...


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Key Advantages
2-in-1 ESC Motor Combo: Compact option for comprehensive scale constructs where area is limited
Advanced Sensored Motor Control: Great for slow speed driving and next level drag brake performance
IP-67 Waterproof Style: The IP-67 water resistant system supplies market leading water resistant and dustproof operation for stress-free driving in mud, sand, snow and water





Multi-point Protection:

Over-current defense

Automatic LiPo low-voltage cutoff

Thermal defense

Failsafe defense





Features

Pro-level Drag Brake performance and adjustability

RPM/Throttle Matching allowed

FOC (Field-Oriented Control) equipped

Integrated 40-amp ESC (160amp burst)

2-3S LiPo/6-9 Cell NiMH input voltage variety

IP-67 rated water resistant system

Fully programmable with optional Spektrum ESC Programmer Box (not included)

Developed and developed by Spektrum™ engineers, in collaboration with the market's leading ESC and Brushless Motor producer

Compact for easy setup in many|many|a lot of|the majority of} applications

All set to install — no soldering required

Adjustable high-power BEC (6V or 7.4V)

Firmware updatable through the Spektrum ESC Shows Box

High heat resistant IC3 adapters, backwards suitable with EC3 adapters

Restricted 1-year guarantee





The Ultimate Compact Crawler Service
The Spektrum Firma Sensored 2-in-1 System is specifically engineered to be used with 10th scale Crawlers and Scalers. Including innovative Field-orientated Control (FOC) and professional drag brake performance and torque control, all while being fully waterproof.

The compact 2-in-1 style grants home builders the ability to lower clutter and parts, giving you the most space for scale devices and modification. The integrated style makes the size similar to a 550 can size motor, making it a easy drop-in option for most 1/10 scale crawler, scaler and trailer models.

Available in a low speed 1400Kv option for severe slow speed and high angle of attack performance. And a high speed 2300Kv for exceptional control for trailers and rock bouncers.





Field-oriented Control

Field-oriented Control
The Spektrum Firma Sensored 2-in-1 System includes a high-precision magnetic encoder and rotor position sensing unit that supplies exceptional 1 to 1 control feel when driving at any speed and at any angle. Completely matched for path driving, rock crawling competitors and rock racing setups. This advancement in sensored motor control permits the ESC to match your throttle input to the motors RPM with unmatched accuracy.
 

Smart Speed and Torque Control

Intelligent Speed And Torque Control
The Spektrum Firma Sensored 2-in-1 System supplies a closed loop control, making sure that the esc keeps torque and RPM levels even as driving conditions change. Offering unmatched control when driving uphill or downhill and even when in wet or loose traction conditions. No matter the surface, the Spektrum Firma Crawler system keeps you in complete control.
 





Maximum Power Effectiveness Provides Longer Battery Life

Maximum Power Efficiency Provides Longer Battery Life
When driving with the Spektrum Firma Sensored 2-in-1 System, motorists are better equipped for the long trails ahead. The Spektrum Firma Sensored 2-in-1 System just uses the power it requires to match your preferred throttle output, supplying substantially more efficient present levels and very long battery life when compared to similar sensorless systems.
 

Pro-Level Drag Brake Modification

Pro-Level Drag Brake Adjustment
The Spektrum Firma Sensored 2-in-1 System includes a huge range of drag brake adjustability, enabling motorists to expertly tune their spiders and scalers depending upon their driven train and vehicle weight. Enabling as much as 200% drag power, no matter the setup, the Spektrum Firma Sensored 2-in-1 System can keep your vehicle parked at nearly any slope.
 





Water resistant

Waterproof
The all-weather, water resistant style of Spektrum™ Firma™ ESCs permits them to perform in nearly any surface under almost any conditions. Firma ESCs keep you going through dust, gravel, snow, and water.
 

High-adjustability Shows Options

High-adjustability Programming Options
Utilizing the Spektrum ESC Shows Box (variation V2 required) , you can quickly change settings on the path to match driving conditions. An easy-to-use Smart Link USB Updating and PC Programmer app is also available.
 



Specifications

Application: 1/10 Rock Crawler

Automobile Cutoff: Yes

BEC Voltage: 6V/7.4V Adjustable, Constant Current 4A (Change Mode)

Connector Type: IC3

Forward: Yes

Input Voltage: 2-3S LiPo, 6-9 Cells NiMH

Maximum Burst Current: 160A

Maximum Constant Current: 40A

Motor Size: 550-Size

Motor Type: Brushless - Sensored

Variety of Poles: 4

External Size: 1.46" (37 mm)

Overload Protection: Yes

Item Length: 2.28" (58 mm)

Item Weight: 201g (consisting of wire plug)

Programmable: Yes

Reverse: Yes

RPM/Volt (Kv): 2300Kv

Shaft Size: 0.125" (3 mm)

Shaft Length: 0.63" (16 mm)

Waterproof: Yes

Frequently Bought Together

Spektrum Firma 2 in 1 Brushless Cr
+
Spektrum Smart ESC Programming Update Box: Avian and Firma
+
Traxxas Servo Digital High Torque 600 Bl Bb
This Item: Spektrum Firma 2 in 1 Brushless Cr
$199.99
Spektrum Smart ESC Programming Update Box: Avian and Firma
$37.99
Traxxas Servo Digital High Torque 600 Bl Bb
$159.95

Total Price: $397.93

Add All Three To Cart
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Rated 4 stars Best 1/10 crawler motor esc
By Scott S on March 14, 2023

I have really enjoyed this combo and it has tons of low end and tuning is awesome I have four of the 1400kv 2 in 1 Firma and it is a great choice crawling motor for sure thank you Vortex

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