How to match an electric motor to an RC aircraft
A practical guide to motor KV, voltage, current, thrust, aircraft weight and flight style so the power system matches the model.
Firma 1400Kv Brushless Sensored Crawler Motor
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Contact RC-MODEL for current availability, technical fit, compatible accessories and a formal quote.
Firma 1400Kv Brushless Sensored Crawler Motor is a Spektrum product intended for surface RC vehicles, crawlers, bashers and race setups that need dependable Spektrum control electronics. This page presents the practical buying information a customer needs before ordering: fit, SKU, image, category, specifications and usage advantages.
The content is written for purchasing through RC-MODEL, without supplier prices or links to competing stores.
Key Advantages
- Organized under the Spektrum telemetry and sensor range.
- Intended for surface RC vehicles, crawlers, bashers and race setups that need dependable Spektrum control electronics.
- Check compatibility with Spektrum Smart equipment and the exact model requirements before ordering.
- Includes local product imagery and structured specifications for easier comparison inside RC-MODEL.
- Spektrum Smart compatibility is highlighted where relevant for batteries, chargers, ESCs or telemetry-aware systems.
- Excellent upgrade for 540 brushed motors with the same diameter and mounting pattern (vehicle must accept pinions with a 1/8" mm bore)
- Perfect for low speed, high torque applications such as competition crawlers
- High-quality 4-pole sintered rotor
Core Specifications
- Manufacturer: Spektrum
- Brand: Spektrum
- Product Code: SPMXSM3000
- Product Family: Spektrum telemetry and sensor range
- Application: 1/10 scale crawlers, rock racers, and trailers running on 2S-3S LiPo power
- Compatibility Focus: Check compatibility with Spektrum Smart equipment and the exact model requirements before ordering.
- Spektrum Category: Cars & Trucks / Parts, Electronics & Accessories / Motors
- Input Voltage: 7.4 - 11.1V
- Motor Type: Brushless
- Bushing Or Bearing: Bearing
- Connector Type: 3.5mm Bullet
- Constant Wattage: 250-499W
- Forward: Yes
- Integrated ESC: No
Relevant RC Academy guides
Learn before you buy
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How to measure current draw with a Watt Meter
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| Technical Specifications | |
| Manufacturer | Spektrum |
| Brand | Spektrum |
| Product Code | SPMXSM3000 |
| Spektrum Category | Cars & Trucks / Parts, Electronics & Accessories / Motors |
| Connector Type | 3.5mm Bullet |
| Product Family | Spektrum telemetry and sensor range |
| Application | 1/10 scale crawlers, rock racers, and trailers running on 2S-3S LiPo power |
| Compatibility Focus | Check compatibility with Spektrum Smart equipment and the exact model requirements before ordering. |
| Forward | Yes |
| Input Voltage | 7.4 - 11.1V |
| Maximum Continuous Current | 25A |
| Motor Output Lead | 3.5 |
| Product Length | 2.27" (58 mm) |
| Reverse | Yes |
| Motor Type | Brushless |
| Water-Resistant | Yes |
| Product Application | Crawling, Surface |
| Motor Size | 540-1400Kv Sensored Brushless |
| Number of Poles | 4 |
| RPM/Volt (Kv) | 1400Kv |
| Bushing Or Bearing | Bearing |
| Outer Diameter | 1.42" (36 mm) |
| Shaft Diameter | 0.125" (3 mm) |
| Motor Class | 1/10 Scale |
| Recommended Speed Control | Spektrum Firma 60A Sensored Brushless Smart Crawler ESC |
| Constant Wattage | 250-499W |
| Integrated ESC | No |
| Kv Rating | 1250-1499Kv |
| Sensor Type | Sensored FOC |
| Sensored | Yes |
| Main Motor Type | Brushless |
Tags: Spektrum, SPMXSM3000, Spektrum telemetry and sensor range, Spektrum Catalog, Spektrum Motors, Spektrum Surface Electronics, RC-MODEL