Product Details
The Spektrum Firma 3-Pole Rebuildable Brushed Motors offer an impressive low-cost upgrade for brushed esc equipped 1/10th scale Crawlers and Scalers. Featuring fully rebuildable design, impressive torque and speed, and excellent efficiency.
Key Features
- Available in 35, 55, and 80 Turn configurations
- 540 can size - perfect upgrade for most 1/10th scale
- Adjustable timing for clockwise and counterclockwise motor rotation
- Pre-shaped curved face brushes - No break-in period required!
- Wires and 3.5mm bullets installed - No soldering required!
In The Box - (1) Spektrum Firma 3-Pole Rebuildable Brushed 80 Turn Motor
- (1) Product Manual
Needed to Complete - (1) Brushed ESC 40 Amp or Higher
Take To The Trails With Confidence
The Spektrum Firma 3-Pole Rebuildable Brushed Motors offer an impressive low-cost upgrade for brushed esc equipped 1/10th scale Crawlers and Scalers. Featuring fully rebuildable design, impressive torque and speed, and excellent efficiency.
Key Benefits
- 3-Pole Design: Industry standard design for max torque and efficiency
- Fully Rebuildable: Easy to replace parts for simple maintenance and increased motor lifespan
- Adjustable Timing: 0 to 20 degree timing adjustments for expert level tuning and increased performance
Features
- Available in 35, 55, and 80 Turn configurations
- 540 can size – perfect upgrade for most 1/10th scale vehicles
- Adjustable timing for clockwise and counterclockwise motor rotation
- Pre-shaped curved face brushes – No break-in period required!
- Wires and 3.5mm bullets installed – No soldering required!
- Dual rubber sealed bearings
- Fully rebuildable with an easily accessible commutator and replaceable brushes, springs, and bearings.
- Brand: Spektrum
- Model Number: SPMXSM5353
- Product Name: Firma 35T Rebuildable 3-Pole Brushed Crawler Motor
- Motor Type: Brushed
- Motor Size: 540-size can
- Turn Configuration: 35T
- Number of Poles: 3
- Outer Diameter: 1.4 inches (36mm)
- Product Length: 2.1 inches (53mm)
- Shaft Diameter: 0.125 inches (3mm)
- Product Weight: 169g (6.0 oz)
- Application: 1/10 Scaler/Crawler
- Suitable For: Crawling and Surface RC applications
- Bearing Type: Dual rubber sealed bearings
- Connector Type: 3.5mm Bullet
- Motor Lead Type: 3.5mm
- Adjustable Timing: Yes (0 to 20 degree adjustments)
- Timing Adjustment Range: 0–20 degrees
- Brush Type: Pre-shaped curved face brushes
- Break-in Period Required: No
- Wiring: Pre-installed with 3.5mm bullets
- Soldering Required: No
- Rotation Options: Clockwise and counterclockwise (adjustable timing)
- Forward Rotation: Yes
- Reverse Rotation: Yes
- Fully Rebuildable: Yes
- Replaceable Components: Brushes, springs, bearings, commutator accessible
- Water-Resistant: No
- Compatible ESC Type: Brushed ESC
- Minimum Required ESC Rating: 40 amps or higher
- Included in Box: 1x Motor, 1x Multilingual Manual
- Additional Items Required: Brushed ESC 40 Amps or higher
Overview
The Spektrum Firma 35T Rebuildable 3-Pole Brushed Crawler Motor represents an impressive low-cost upgrade for brushed ESC equipped 1/10th scale crawlers and scalers throughout the UK. Whether you're a seasoned RC car enthusiast or exploring the world of rock crawling, this motor delivers the torque and efficiency needed to tackle challenging terrain with confidence. The Firma 35T is purpose-built for serious crawling applications where reliability and rebuild-ability matter most, making it an ideal choice for RC enthusiasts who demand performance without breaking the bank.
As a fully rebuildable motor, the Spektrum Firma 35T offers exceptional value for money and long-term reliability. Unlike sealed disposable motors, this crawler motor features an easily accessible commutator and replaceable brushes, springs, and bearings, allowing you to extend the motor's lifespan considerably through simple maintenance. This means that when components wear out, you're not forced to purchase an entirely new unit—you simply replace the worn parts. For UK-based RC crawling enthusiasts, this approach to sustainability and cost-effectiveness has made the Firma range one of the most popular choices for 1/10th scale scaling and crawling platforms.
The Firma 35T combines industry-standard 3-pole design with pre-shaped curved-face brushes that require absolutely no break-in period, allowing you to hit the ground running from day one. With wires and 3.5mm bullets already installed, there's no soldering required—simply connect it to your brushed ESC and start exploring the trails. Dual rubber-sealed bearings protect the motor from dirt and moisture during outdoor RC crawling sessions, whilst adjustable timing from 0 to 20 degrees allows expert-level tuning for those who want to optimise performance to their specific driving style and terrain requirements.
Key Features
- 3-Pole Design — The three-pole configuration is the industry standard for crawler and scaler motors because it delivers maximum torque output and excellent efficiency, which are the two most critical factors when navigating rocky terrain and steep climbs on demanding crawling courses.
- Fully Rebuildable Construction — Unlike many sealed motors, the Firma 35T features a fully rebuildable design with an easily accessible commutator and replaceable brushes, springs, and bearings, meaning you can perform routine maintenance and extend the motor's operational life significantly without expensive replacements.
- Adjustable Timing (0–20 Degrees) — Expert-level drivers can adjust motor timing from zero to 20 degrees to fine-tune performance characteristics, allowing for increased performance and responsiveness tailored to your specific crawling style and the demands of your chosen terrain.
- Pre-Shaped Curved-Face Brushes — The brushes arrive pre-shaped and require zero break-in period, meaning the motor performs optimally from the moment you switch it on, with no gradual performance increase or adjustment period needed.
- 540 Can Size — The standard 540-size form factor makes the Firma 35T an ideal direct upgrade for most 1/10th scale RC crawler and scaler vehicles, fitting existing motor mounts without modification or adaptation.
- Wires and 3.5mm Bullets Pre-Installed — The motor arrives with wires and 3.5mm bullet connectors already soldered and ready to connect, eliminating the need for any soldering work on your part and reducing assembly time to minutes.
- Dual Rubber-Sealed Bearings — Protective rubber seals around both bearings help prevent dirt, sand, and moisture from entering the bearing assembly during crawling sessions, extending component life and maintaining smooth rotation even in dusty outdoor environments.
- Clockwise and Counterclockwise Rotation — Adjustable timing allows you to configure the motor for either direction of rotation, providing flexibility for different vehicle setups and transmission configurations.
- Available in Multiple Turn Configurations — The Firma range includes 35T, 55T, and 80T options, allowing you to choose the ideal gearing ratio for your specific crawling application, terrain type, and desired balance between speed and torque.
Technical Performance
The Spektrum Firma 35T Rebuildable 3-Pole Brushed Crawler Motor is engineered specifically for 1/10th scale crawling and scaling applications where sustained torque and climbing power are essential. The 540-size can format (outer diameter 1.4 inches / 36mm, length 2.1 inches / 53mm) ensures compatibility with standard motor mounts found on popular UK RC crawler platforms from brands like Axial and Element RC. With a 3mm shaft diameter and weighing just 169 grams (6.0 ounces), the motor provides an excellent weight-to-power ratio that doesn't compromise vehicle balance or suspension geometry. The 3-pole brushed design delivers impressive low-end torque essential for crawling over obstacles, whilst maintaining the efficiency needed for extended run times on a single charge. The motor is fully compatible with any brushed ESC rated 40 amps or higher, providing flexibility in electronics selection. Dual rubber-sealed bearings ensure reliable operation even when exposed to dirt, sand, and moisture during outdoor crawling expeditions across the UK's diverse terrain. The adjustable timing mechanism, allowing 0–20 degree adjustments, enables experienced drivers to dial in performance characteristics to match their specific vehicle setup and driving preferences, making this motor suitable for everything from casual backyard crawling to more serious competitive scaling events.
What's in the Box
- 1x Spektrum Firma 35T Rebuildable 3-Pole Brushed Crawler Motor
- 1x Product Manual (multilingual)
What You Need to Complete
- Brushed ESC rated 40 amps or higher
- 1/10th scale RC crawler or scaler vehicle platform
- Battery pack compatible with your chosen brushed ESC
Frequently Asked Questions
- Is the Spektrum Firma 35T suitable for beginners to RC crawling? — Yes, absolutely. The pre-shaped brushes require no break-in period, the wires and bullets are pre-installed with no soldering needed, and the motor works reliably with any standard brushed ESC rated 40 amps or higher. The straightforward design makes it accessible to newcomers, whilst the adjustable timing feature allows experienced drivers to extract advanced performance when they're ready.
- What makes this motor rebuildable, and why does it matter? — Unlike sealed motors that must be discarded when components wear out, the Firma 35T features an easily accessible commutator with replaceable brushes, springs, and bearings. This means you can perform routine maintenance yourself, replacing worn components individually rather than buying an entirely new motor, saving money over the motor's lifetime and reducing waste.
- What is the 35T turn count, and how does it compare to the 55T and 80T versions? — The 35T designation refers to the number of wire turns around the motor's armature. The 35T version provides a good balance between speed and torque for general-purpose crawling. The 55T offers more torque with lower speed, ideal for extremely technical terrain and heavy-duty climbing, whilst the 80T prioritises maximum torque for the most challenging obstacles at the slowest speeds.
- Can I adjust the timing on this motor? — Yes, the Firma 35T features fully adjustable timing from 0 to 20 degrees, allowing expert-level drivers to fine-tune performance characteristics. Increased timing typically provides more aggressive acceleration and top-end speed, whilst lower timing settings favour smooth, controllable torque delivery ideal for precision crawling.
- What ESC rating do I need to use with this motor? — You'll need a brushed ESC rated 40 amps or higher. This specification is important because it ensures the ESC can safely handle the motor's current draw without overheating, damage, or performance throttling during extended crawling sessions.
- Is this motor water-resistant? — The Firma 35T is not fully waterproof, though it does feature dual rubber-sealed bearings that provide protection against dirt, sand, and light moisture exposure during typical outdoor crawling. Avoid deliberate water submersion, but the sealed bearings will protect the motor during normal use in damp conditions.
- What is the motor's outer diameter and can it fit my vehicle? — The Firma 35T has an outer diameter of 1.4 inches (36mm) and a standard 3mm shaft diameter, using the industry-standard 540-size can format. This makes it an ideal direct upgrade for most 1/10th scale crawlers and scalers on the market, fitting existing motor mounts without any modification required.
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 35T Rebuildable 3-Pole Brushed Crawler Motor M-SPMXSM5353 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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