Spektrum Firma 12-Pole Outrunner Brushless Motor Overview
The Spektrum® Firma™ 3530 2200Kv Brushless Motor is a great choice for 1/10 rock crawler models running on 2-3S LiPo power. This motor features a 12-pole rotor design, CNC machined aluminum housing, insulated high purity copper windings, and high-quality alloy steel 3.175mm (1/8 in.) output shaft for durability and smooth rotation. The motor includes preinstalled 3.5mm gold-plated bullet connectors for easy installation.
Overview
The Spektrum® Firma™ 3530 2200Kv 12-Pole Outrunner Brushless Motor is an excellent choice for RC enthusiasts in the UK looking to upgrade or build a high-performance 1/10 scale rock crawler or off-road vehicle. This brushless motor delivers reliable, efficient power with smooth acceleration and consistent performance across a wide range of driving conditions. Whether you're a seasoned RC competitor, a weekend basher, or someone exploring the world of brushless RC power for the first time, this motor offers the perfect balance of torque, speed and durability that serious RC car UK hobbyists demand.
Engineered by Spektrum, a trusted name in RC technology, this outrunner motor is specifically designed for 2-3S LiPo battery systems, making it ideal for medium to high-speed applications. The 12-pole rotor design provides smooth power delivery and excellent efficiency, whilst the sensorless operation keeps the setup simple and cost-effective. This is the kind of ready to run brushless RC motor upgrade that can transform your vehicle's performance without requiring complicated tuning or configuration.
With its professional-grade construction, pre-installed connectors and robust engineering, the Firma 3530-2200Kv represents genuine value for UK RC enthusiasts who refuse to compromise on quality. This motor is built to handle serious driving sessions, whether you're tackling rocky terrain, rough track conditions or competitive racing environments.
Key Features
- 12-Pole Outrunner Design — The 12-pole rotor configuration delivers smooth, linear power delivery across the entire RPM range, providing responsive acceleration and predictable handling characteristics that make this motor ideal for both casual driving and competitive RC racing.
- 2200Kv Rating — With a 2200Kv speed constant, this motor strikes an excellent balance between top speed and torque, making it versatile enough for crawling, bashing and track driving without sacrificing low-end power or requiring extremely high battery voltages.
- CNC Machined Aluminium Housing — The precision-engineered aluminium housing is CNC machined for tight tolerances and perfect concentricity, ensuring minimal vibration, maximum efficiency and a long service life even under demanding driving conditions.
- High Purity Copper Windings — Insulated windings made from high purity copper provide superior electrical conductivity and heat dissipation, reducing copper losses and allowing the motor to run cooler during extended driving sessions whilst maintaining consistent performance.
- 3.175mm Alloy Steel Output Shaft — The hardened alloy steel shaft is precision-ground to 3.175mm (1/8 inch) diameter, offering excellent strength-to-weight ratio and durability for reliable power transmission without the risk of shaft flex or breakage under load.
- Pre-installed 3.5mm Gold-Plated Bullet Connectors — The motor comes ready to go with quality gold-plated connectors already installed, eliminating the need for soldering and ensuring reliable electrical connections with minimal resistance for optimal power transfer.
- Sensorless Operation — This sensorless brushless motor simplifies installation and reduces wiring complexity, making it compatible with a wide range of budget-friendly and advanced ESCs whilst maintaining smooth commutation throughout the power range.
- 3530 Motor Size — The 3530 dimensions (35mm diameter, 30mm length) represent the sweet spot for 1/10 scale RC applications, offering plenty of torque in a compact footprint that fits standard motor mounts without modification.
Technical Performance
The Spektrum Firma 3530-2200Kv motor represents genuine engineering excellence designed specifically for 1/10 scale RC vehicles running 2-3S LiPo batteries. The 12-pole outrunner configuration uses a high-quality rotor design that works in harmony with the CNC-machined aluminium housing to minimise mechanical losses and vibration. The insulated high-purity copper windings are wound with precision to exact specifications, ensuring maximum electrical efficiency and consistent power output across temperature ranges. The hardened alloy steel 3.175mm output shaft provides the durability required for serious RC driving, resisting the twisting forces and shock loads that come from aggressive acceleration and off-road terrain. This motor excels in rock crawler applications where low-speed torque and precise throttle control are essential, but its 2200Kv rating also makes it suitable for bashing and high-speed driving when paired with appropriate gearing. The pre-installed 3.5mm gold-plated bullet connectors ensure rock-solid electrical connections without the need for soldering, reducing installation time and the risk of poor connections that can cause performance issues. Whether you're upgrading an existing RC car UK setup or building a new vehicle from scratch, this motor delivers the performance characteristics that UK RC enthusiasts expect from a quality brushless motor.
What's in the Box
- Spektrum Firma 3530-2200Kv 12-Pole Outrunner Brushless Motor with 3.175mm shaft
- Pre-installed 3.5mm gold-plated bullet connectors
What You Need to Complete
- Brushless ESC (Electronic Speed Controller) rated for the motor specifications — a 60A to 100A+ ESC is recommended depending on your driving style and application
- LiPo Battery pack (2S or 3S configuration, 5000-7000mAh recommended for typical 1/10 rock crawler applications)
- RC Vehicle chassis with compatible motor mount (3530 motor size)
- Radio system and receiver for control
- Servo for steering control
- Wheels, tyres and drivetrain components as needed for your specific RC vehicle
Frequently Asked Questions
- What is the 2200Kv rating and how does it affect performance? — Kv (kilovolt) rating indicates how many RPM the motor will turn per volt of input. A 2200Kv motor will reach approximately 2200 RPM per volt, making this a moderate-speed outrunner well-suited for 1/10 scale rock crawlers and general-purpose RC vehicles. Higher Kv ratings deliver more speed but less torque, whilst lower Kv ratings provide more torque but lower maximum speed. For 2-3S LiPo batteries, the 2200Kv rating delivers an excellent balance for crawling and bashing.
- What battery should I use with this motor? — The Spektrum Firma 3530-2200Kv is designed for 2-3S LiPo batteries (7.4V to 11.1V), which is standard for 1/10 scale RC vehicles. A typical setup uses a 2S 5000mAh to 3S 7000mAh LiPo battery pack. Always match your ESC amperage rating to your driving style; heavier vehicles and aggressive driving benefit from higher-capacity batteries and correspondingly higher amperage ESCs.
- Is this motor sensorless or sensored? — This is a sensorless outrunner motor, meaning it does not include internal sensors to detect rotor position. Sensorless motors are more affordable and simpler to install, but they may have slightly less smooth commutation at very low speeds compared to sensored alternatives. For most RC applications, sensorless performance is entirely adequate and this motor delivers excellent results.
- What ESC do I need? — The Firma 3530-2200Kv works with most modern brushless ESCs in the 60A to 120A+ range. The exact amperage you need depends on your vehicle weight, driving style and battery capacity. A 60-80A ESC is typical for rock crawlers, whilst 100-120A ESCs are better for heavier vehicles or aggressive driving. Ensure your chosen ESC supports the voltage of your battery pack (2S or 3S compatible).
- What makes this motor different from other 3530 motors? — The Spektrum Firma 3530-2200Kv distinguishes itself through CNC-machined aluminium construction, insulated high-purity copper windings, a precision hardened alloy steel shaft and pre-installed quality connectors. These features combine to deliver superior efficiency, lower vibration, longer lifespan and more consistent performance compared to budget alternative motors.
- Is this suitable for beginners? — Yes, this motor is excellent for beginners to brushless RC systems. It offers smooth, predictable power delivery, works with affordable ESC options, and the sensorless design simplifies setup. The 2200Kv rating is forgiving enough for learning whilst still providing satisfying performance as your skills develop. However, you will need to source an ESC and battery separately, so budget accordingly.
- Can I use this in a rock crawler? — The Firma 3530-2200Kv is ideally suited for 1/10 scale rock crawlers, where its combination of moderate speed and strong low-end torque shines. The 2200Kv rating and 12-pole design provide the smooth power delivery and precision throttle control that crawlers demand, making this a popular choice among UK rock crawler enthusiasts.
- How durable is this motor? — The CNC-machined aluminium housing, hardened alloy steel shaft and high-quality copper windings mean this motor is built for durability. With proper maintenance (keeping it clean and dry), this motor should provide years of reliable service through countless driving sessions.
Why Buy from RC Model Shop?
RC Model Shop is a trusted UK RC retailer and authorised dealer for all the brands we stock, including Traxxas, ARRMA, Losi, FTX, Hobbywing, Spektrum and more. Based in Walsall, we have a physical store where customers are welcome to come in, view products and purchase in store. Whether you are a seasoned competitor, a weekend basher, or just discovering the world of RC for the first time, our team of experienced RC enthusiasts is here to help you find the perfect setup and provide ongoing support. Order the SPM Firma 3530-2200Kv 12-Pole Outrunner Brushless Motor, 3.175mm M-SPMXSM7100 today with confidence, knowing you are buying from an authorised retailer with genuine products, expert knowledge and a commitment to customer satisfaction. Shop online or visit us in Walsall — we look forward to helping you get the most out of your RC experience.
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