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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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List Price:  $183.99
Price:  $179.99
You Save:  $4 (2%)

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Updated on May 17, 2026 02:21:19 PM

Firma 2 in 1 Brushless Cr...


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Secret Benefits
2-in-1 ESC Motor Combo: Compact choice for in-depth scale develops where space is restricted
Advanced Sensored Motor Control: Great for slow speed driving and next level drag brake efficiency
IP-67 Waterproof Design: The IP-67 waterproof system provides market leading waterproof and dustproof operation for worry-free driving in mud, sand, snow and water





Multi-point Security:

Over-current defense

Automatic LiPo low-voltage cutoff

Thermal defense

Failsafe defense





Features

Pro-level Drag Brake efficiency and adjustability

RPM/Throttle Matching made it possible for

FOC (Field-Oriented Control) equipped

Integrated 40-amp ESC (160amp burst)

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

IP-67 ranked waterproof system

Completely programmable with optional Spektrum ESC Programmer Box (not consisted of)

Established and designed by Spektrum™ engineers, in collaboration with the market's leading ESC and Brushless Motor manufacturer

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

Ready to install — no soldering required

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

Firmware updatable through the Spektrum ESC Programming Box

High heat resistant IC3 ports, in reverse suitable with EC3 ports

Restricted 1-year service warranty





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

The compact 2-in-1 design grants builders the capability to lower clutter and components, providing you the most space for scale devices and personalization. The incorporated design makes the size comparable 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 choice for severe slow speed and high angle of attack efficiency. And a high speed 2300Kv for outstanding 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 sensor that provides outstanding 1 to 1 control feel when driving at any speed and at any angle. Completely fit for path driving, rock crawling competitions and rock racing setups. This improvement in sensored motor control allows 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 provides a closed loop control, guaranteeing that the esc keeps torque and RPM levels even as driving conditions change. Giving unprecedented control when driving uphill or downhill and even when in wet or loose traction conditions. No matter the surface, the Spektrum Firma Spider system keeps you in total control.
 





Maximum Power Efficiency Provides Longer Battery Life

Maximum Power Efficiency Provides Longer Battery Life
When driving with the Spektrum Firma Sensored 2-in-1 System, chauffeurs are better equipped for the long routes ahead. The Spektrum Firma Sensored 2-in-1 System just utilizes the power it requires to match your desired throttle output, offering significantly more effective current levels and very long battery life when compared with comparable sensorless systems.
 

Pro-Level Drag Brake Adjustment

Pro-Level Drag Brake Adjustment
The Spektrum Firma Sensored 2-in-1 System includes a huge range of drag brake adjustability, permitting chauffeurs to skillfully tune their spiders and scalers depending upon their driven train and lorry weight. Permitting as much as 200% drag power, no matter the setup, the Spektrum Firma Sensored 2-in-1 System can keep your lorry parked at almost any incline.
 





Water resistant

Waterproof
The all-weather, waterproof design of Spektrum™ Firma™ ESCs allows them to carry out in almost any surface under nearly any conditions. Firma ESCs keep you going through dust, gravel, snow, and water.
 

High-adjustability Programming Options

High-adjustability Programming Options
Using the Spektrum ESC Programming Box (version V2 required) , you can quickly change settings on the path to match driving conditions. A user friendly Smart Link USB Updating and PC Programmer app is also readily available.
 



Requirements

Application: 1/10 Rock Spider

Automobile Cutoff: Yes

BEC Voltage: 6V/7.4V Adjustable, Constant Present 4A (Switch Mode)

Adapter Type: IC3

Forward: Yes

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

Maximum Burst Current: 160A

Maximum Constant Present: 40A

Motor Size: 550-Size

Motor Type: Brushless - Sensored

Variety of Poles: 4

Outer Diameter: 1.46" (37 mm)

Overload Security: Yes

Product Length: 2.28" (58 mm)

Product Weight: 201g (including wire plug)

Programmable: Yes

Reverse: Yes

RPM/Volt (Kv): 2300Kv

Shaft Diameter: 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
$179.99
Spektrum Smart ESC Programming Update Box: Avian and Firma
$37.99
Traxxas Servo Digital High Torque 600 Bl Bb
$159.95

Total Price: $377.93

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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