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.
Overview
The Spektrum Firma 55T Rebuildable 3-Pole Brushed Crawler Motor is an impressive low-cost upgrade for brushed ESC equipped 1/10th scale crawlers and scalers across the UK. Whether you're a seasoned RC enthusiast looking to refresh your trail rig or a newcomer to the world of RC cars, this motor delivers exceptional performance without breaking the bank. With its fully rebuildable design, impressive torque and speed characteristics, and excellent efficiency, the Firma 55T represents genuine value for money in the competitive RC motor market.
This 540 size motor is the perfect upgrade for most 1/10 scale RC vehicles, offering the industry-standard 3-pole design that maximises torque and efficiency. The Firma range is available in three turn configurations—35T, 55T, and 80T—allowing you to choose the exact performance profile suited to your driving style and terrain. Whether you're tackling rocky trails, technical crawling sections, or general off-road adventures, the Firma 55T provides the balanced performance that modern 1/10 scale crawlers demand. What makes this motor particularly attractive to RC hobbyists is its fully rebuildable construction, which means you can keep your motor running for years with simple maintenance and easily replaceable parts.
The pre-shaped curved face brushes require zero break-in period, so you can get straight out on the trails with confidence from day one. Wires and 3.5mm bullets are pre-installed, eliminating the need for soldering—a massive advantage if you're new to RC or simply want hassle-free setup. Combined with dual rubber sealed bearings and adjustable timing for both clockwise and counterclockwise rotation, the Firma 55T is engineered for reliability, performance, and ease of use.
Key Features
- 3-Pole Design — The industry-standard three-pole motor configuration is recognised as the gold standard for maximising torque output and overall efficiency, which is exactly what crawlers and scalers need when tackling demanding terrain and steep climbs.
- 540 Can Size — This motor housing is the perfect size upgrade for the vast majority of 1/10 scale crawlers and scalers, ensuring straightforward installation into existing chassis without requiring extensive modification or adapters.
- Fully Rebuildable Construction — Unlike many disposable motors, the Firma 55T features an easily accessible commutator and completely replaceable brushes, springs, and bearings, which means you can extend the motor's lifespan indefinitely and save money on replacements over time.
- Pre-Shaped Curved Face Brushes — These brushes come factory-shaped and require no break-in period whatsoever, allowing you to install the motor and immediately enjoy optimal performance without weeks of gradual running-in.
- Dual Rubber Sealed Bearings — The sealed bearing design protects internal components from dust, dirt, and moisture encountered on the trail, extending bearing life and maintaining smooth, reliable operation in challenging outdoor conditions.
- Adjustable Timing — With 0 to 20 degree timing adjustments, expert-level tuners can fine-tune motor performance for increased speed or torque depending on their specific requirements and driving style, offering the flexibility that serious hobbyists demand.
- Adjustable Rotation Direction — The motor supports both clockwise and counterclockwise rotation, providing flexibility in vehicle configuration and ensuring compatibility with a wide range of 1/10 scale platforms.
- Pre-Installed Wires and Bullets — The 3.5mm bullet connectors arrive soldered and ready to use, eliminating soldering requirements and making this motor accessible to beginners whilst satisfying experienced builders who simply want to get on the trail faster.
- Available in Multiple Turn Options — Offered in 35T, 55T, and 80T configurations, the Firma range allows you to select the ideal turn count for your specific vehicle weight, gearing, and driving terrain, whether you prioritise raw speed or maximum torque.
Technical Performance
The Spektrum Firma 55T Rebuildable 3-Pole Brushed Crawler Motor represents genuine engineering excellence in the 1/10 scale brushed motor category. At 540 can size with 55 turns, this motor strikes an excellent balance between torque and speed, making it ideal for crawlers and scalers that demand consistent pulling power without sacrificing responsiveness. The three-pole construction is universally recognised throughout the RC hobby as the optimal configuration for crawler applications, delivering the high torque characteristics essential for navigating obstacles, climbing inclines, and maintaining control on technical terrain. The motor's impressive efficiency means you'll extract maximum runtime from your battery pack, which is particularly important when you're deep in a trail session and need dependable power delivery. Built to the highest standards with dual rubber sealed bearings that protect against the elements encountered during outdoor use, the Firma 55T maintains smooth operation even after extended use in dusty or wet conditions. The fully rebuildable design is a game-changer for serious RC enthusiasts; rather than discarding a worn motor and purchasing a replacement, you can simply swap out worn brushes, springs, and bearings with inexpensive replacement parts, dramatically reducing your long-term operating costs. The pre-shaped curved face brushes are engineered to provide immediate optimal contact with the commutator, eliminating the weeks-long break-in period associated with many aftermarket motors. This motor is designed to work with brushed ESC systems rated at 40 amps or higher, making it compatible with most modern brushed speed controllers available in the UK RC market today.
What's in the Box
- Spektrum Firma 3-Pole Rebuildable Brushed 55T Motor
- Product Manual
What You Need to Complete
- Brushed ESC rated 40 Amp or higher
Frequently Asked Questions
- Is the Spektrum Firma 55T suitable for beginner RC crawlers? — Yes, absolutely. The Firma 55T is specifically designed as a low-cost upgrade for 1/10 scale crawlers, making it an excellent choice for beginners. The pre-installed wires and bullets eliminate soldering requirements, and the pre-shaped brushes mean you can install it and start driving immediately without break-in procedures. The fully rebuildable design also makes it forgiving if you make mistakes, since worn parts can be replaced affordably.
- What ESC do I need to run the Firma 55T motor? — The Firma 55T requires a brushed electronic speed controller (ESC) rated at 40 amps or higher. This is a standard specification across modern 1/10 scale crawlers and scalers, so most existing brushed ESC systems will be compatible. If you're upgrading from an older setup, ensure your ESC meets this minimum current rating for reliable operation.
- What is the difference between the 35T, 55T, and 80T versions? — The number refers to the motor's turn count. The 35T has fewer turns and delivers higher top speed with slightly less torque, ideal if you're running a lighter vehicle or want more sprint capability. The 55T (this model) provides a balanced middle ground with strong torque and respectable speed. The 80T has more turns, delivering maximum torque at the expense of top speed, perfect for heavily modded vehicles or extreme rock crawling where raw pulling power is paramount. Choose based on your vehicle weight, gearing, and terrain.
- Do I need to run the Firma 55T in before using it? — No. The pre-shaped curved face brushes are factory-engineered for immediate optimal performance, so there is no break-in period required. You can install the motor and drive immediately without any gradual running-in procedure, saving time and allowing you to enjoy your RC crawler straight away.
- Can I adjust the motor's timing myself? — Yes. The Firma 55T features adjustable timing from 0 to 20 degrees, allowing expert-level tuners to fine-tune performance characteristics. More timing increases speed but may reduce efficiency, whilst less timing provides more consistent torque. Adjusting timing requires technical knowledge, so this feature is best suited to experienced builders.
- How long does the Firma 55T motor last? — Thanks to its fully rebuildable construction, the motor's lifespan is essentially unlimited. When brushes wear out or bearings become tired, you simply replace those individual components with inexpensive parts. This is a major advantage over disposable motors and makes the Firma 55T an economical long-term investment for regular RC crawling enthusiasts.
- What battery type works with the Firma 55T? — The Firma 55T is a brushed motor that works with brushed ESC systems, which are typically powered by LiPo batteries in the 2S or 3S configuration for 1/10 scale applications. Consult your ESC documentation to confirm the battery voltage range it supports, as this will determine which LiPo cells you can safely use.
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 55T Rebuildable 3-Pole Brushed Crawler Motor M-SPMXSM5553 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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