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The Spektrum M-SPMXSM1700 Firma 2050Kv brushless motor for 1/7–1/8 scale 6S RC vehicles is engineered for high-performance racers and bashers who demand torque-heavy acceleration, drivetrain resilience, and thermal stability. Designed for buggy, truggy, and monster truck platforms, this sensorless inrunner motor delivers a commanding 5050W output, making it ideal for aggressive terrain and competitive speed setups. Its 4-pole, 8-magnet rotor design ensures low cogging and smooth throttle response, while the CNC-machined aluminum housing enhances heat dissipation and structural durability during extended high-RPM operation. The hardened steel 5mm Safe-D shaft features a C-clip locking point to prevent pinion gear slip, ensuring secure power transfer under extreme loads. Preinstalled 4mm gold-plated bullet connectors simplify installation and provide reliable high-current connectivity. Whether you're building a speed-focused rig or a rugged basher, the Spektrum M-SPMXSM1700 motor offers precision, power, and durability for elite 1/7–1/8 scale performance.
Key features of the Spektrum M-SPMXSM1700 motor
- 4-pole rotor – delivers torque-rich propulsion and consistent throttle response for high-speed surface platforms
- 5050W output – supports rapid acceleration and sustained performance under heavy load
- Low-cog 8-magnet rotor – minimizes startup hesitation and improves throttle fidelity
- CNC aluminum housing – enhances thermal stability and protects internal components from vibration and impact
- Safe-D shaft with C-clip locking point – prevents pinion gear slip during high-torque operation
- Precision ball bearings – reduce friction and support smooth, vibration-free rotation
How does the Safe-D shaft improve drivetrain reliability?
The Spektrum M-SPMXSM1700 4-pole motor with CNC aluminum housing and Safe-D shaft features a 5mm hardened steel output shaft with a C-clip locking point that prevents pinion gear slippage under load. This design ensures consistent power delivery during aggressive launches and high-speed runs, reducing wear and mechanical failure. For racers and bashers pushing their vehicles to the limit, the Safe-D shaft provides peace of mind and long-term drivetrain integrity.
Why is the 5050W output ideal for 6S bashing and racing?
The Spektrum M-SPMXSM1700 with 5050W output and low-cog 8-magnet rotor design is optimized for high-RPM acceleration and torque-heavy performance. This power rating enables the motor to maintain speed and control across rugged terrain, jumps, and competitive tracks. Whether you're racing or bashing, the motor’s output ensures that your 1/7–1/8 scale vehicle responds with authority and precision.
What installation advantages do the 4mm bullet connectors offer?
The Spektrum M-SPMXSM1700 sensorless inrunner motor with 4mm bullet connectors comes preinstalled with gold-plated terminals that simplify wiring and ensure secure high-current connections. These connectors are designed for durability and conductivity, reducing resistance and heat buildup during operation. Their compact size also supports clean installations in tight motor bays, making setup fast and reliable.
Is this motor suitable for buggy, truggy, and monster truck platforms?
Absolutely. The Spektrum 2050Kv motor for buggy, truggy, and monster truck platforms is built to handle the demands of 1/7–1/8 scale surface vehicles. Its 4074-class dimensions, high-efficiency rotor, and rugged construction make it a drop-in upgrade for builds that require torque, speed, and thermal resilience. Whether you're navigating jumps, racing on dirt tracks, or bashing through rough terrain, this motor delivers consistent performance and durability.
For RC enthusiasts seeking a high-performance upgrade for their 1/7–1/8 scale vehicle, the Spektrum M-SPMXSM1700 Firma 2050Kv brushless motor for 1/7–1/8 scale 6S RC vehicles offers unmatched power, precision, and reliability. Buy Spektrum M-SPMXSM1700 motor for torque-heavy 6S bashing and racing setups.
Product Description of Spektrum M-SPMXSM1700 Firma 2050Kv brushless motor
The Spektrum M-SPMXSM1700 Firma 2050Kv brushless motor for 1/7–1/8 scale 6S RC vehicles is engineered for high-performance racers and bashers who demand torque-heavy acceleration, drivetrain resilience, and thermal stability. Designed for buggy, truggy, and monster truck platforms, this sensorless inrunner motor delivers a commanding 5050W output, making it ideal for aggressive terrain and competitive speed setups. Its 4-pole, 8-magnet rotor design ensures low cogging and smooth throttle response, while the CNC-machined aluminum housing enhances heat dissipation and structural durability during extended high-RPM operation. The hardened steel 5mm Safe-D shaft features a C-clip locking point to prevent pinion gear slip, ensuring secure power transfer under extreme loads. Preinstalled 4mm gold-plated bullet connectors simplify installation and provide reliable high-current connectivity. Whether you're building a speed-focused rig or a rugged basher, the Spektrum M-SPMXSM1700 motor offers precision, power, and durability for elite 1/7–1/8 scale performance.
Key features of the Spektrum M-SPMXSM1700 motor
- 4-pole rotor – delivers torque-rich propulsion and consistent throttle response for high-speed surface platforms
- 5050W output – supports rapid acceleration and sustained performance under heavy load
- Low-cog 8-magnet rotor – minimizes startup hesitation and improves throttle fidelity
- CNC aluminum housing – enhances thermal stability and protects internal components from vibration and impact
- Safe-D shaft with C-clip locking point – prevents pinion gear slip during high-torque operation
- Precision ball bearings – reduce friction and support smooth, vibration-free rotation
How does the Safe-D shaft improve drivetrain reliability?
The Spektrum M-SPMXSM1700 4-pole motor with CNC aluminum housing and Safe-D shaft features a 5mm hardened steel output shaft with a C-clip locking point that prevents pinion gear slippage under load. This design ensures consistent power delivery during aggressive launches and high-speed runs, reducing wear and mechanical failure. For racers and bashers pushing their vehicles to the limit, the Safe-D shaft provides peace of mind and long-term drivetrain integrity.
Why is the 5050W output ideal for 6S bashing and racing?
The Spektrum M-SPMXSM1700 with 5050W output and low-cog 8-magnet rotor design is optimized for high-RPM acceleration and torque-heavy performance. This power rating enables the motor to maintain speed and control across rugged terrain, jumps, and competitive tracks. Whether you're racing or bashing, the motor’s output ensures that your 1/7–1/8 scale vehicle responds with authority and precision.
What installation advantages do the 4mm bullet connectors offer?
The Spektrum M-SPMXSM1700 sensorless inrunner motor with 4mm bullet connectors comes preinstalled with gold-plated terminals that simplify wiring and ensure secure high-current connections. These connectors are designed for durability and conductivity, reducing resistance and heat buildup during operation. Their compact size also supports clean installations in tight motor bays, making setup fast and reliable.
Is this motor suitable for buggy, truggy, and monster truck platforms?
Absolutely. The Spektrum 2050Kv motor for buggy, truggy, and monster truck platforms is built to handle the demands of 1/7–1/8 scale surface vehicles. Its 4074-class dimensions, high-efficiency rotor, and rugged construction make it a drop-in upgrade for builds that require torque, speed, and thermal resilience. Whether you're navigating jumps, racing on dirt tracks, or bashing through rough terrain, this motor delivers consistent performance and durability.
For RC enthusiasts seeking a high-performance upgrade for their 1/7–1/8 scale vehicle, the Spektrum M-SPMXSM1700 Firma 2050Kv brushless motor for 1/7–1/8 scale 6S RC vehicles offers unmatched power, precision, and reliability. Buy Spektrum M-SPMXSM1700 motor for torque-heavy 6S bashing and racing setups.
Technical Specifications of Spektrum M-SPMXSM1700 Firma 2050Kv brushless motor
Brand, Model and Product Type
- Brand: Spektrum
- Model: M-SPMXSM1700
- Product Type: Spektrum M-SPMXSM1700 Firma 2050Kv brushless motor for 1/7–1/8 scale 6S RC vehicles, Spektrum M-SPMXSM1700 sensorless inrunner motor with 4mm bullet connectors, Spektrum M-SPMXSM1700 4-pole motor with CNC aluminum housing and Safe-D shaft, Spektrum M-SPMXSM1700 with 5050W output and low-cog 8-magnet rotor design, Spektrum Firma motor with hardened steel shaft and precision ball bearings
Dimensions & Weight
- Motor Length: 7.4 cm – compact format for 1/7–1/8 scale motor bays
- Motor Diameter: 4.0 cm – compatible with standard 4074-class mounts
- Shaft Diameter: 5 mm – hardened steel shaft for drivetrain stability
- Shaft Length: 1.85 cm – ensures secure gear engagement and alignment
- Product Weight: 415 g – robust construction for torque-heavy applications
Performance & Electrical Specifications
- Kv Rating: 2050Kv – optimized for high-RPM acceleration and torque delivery
- Input Voltage Range: 12.0V–25.2V – compatible with 3S–6S LiPo setups
- Output Power: 5050W – supports aggressive bashing and racing under heavy load
- Maximum Continuous Current: 62A – enables sustained high-performance operation
- Efficiency: 85% – supports thermal stability and energy conservation
- Motor Type: Brushless Sensorless – simplifies setup and reduces mechanical complexity
- Motor Design: Inrunner – compact and efficient for enclosed motor compartments
- Number of Poles: 4 – supports torque-rich propulsion and smooth rotation
Construction & Materials
- Rotor Design: Low-cog 8-magnet – enhances throttle response and startup smoothness
- Housing Material: CNC-machined aluminum – improves heat dissipation and structural durability
- Shaft Material: Hardened steel – resists wear and ensures long-term mechanical integrity
- Cooling System: Passive – maintains thermal stability without external fans
- Safe-D Shaft: C-clip locking point – prevents pinion gear slip during high-torque operation
Connectivity & Compatibility
- Connector Type: 4mm gold-plated bullet connectors – preinstalled for secure high-current connections
- Application: Designed for 1/7–1/8 scale buggy, truggy, and monster truck platforms – ideal for 6S LiPo builds
- Recommended ESC: Firma 150A Smart ESC – ensures optimal pairing and performance
What’s in the Box
- (1) Firma 2050Kv Brushless Motor
What You Require
- Electronic Speed Control such as the Spektrum Firma 150A Smart ESC
We want to make sure your delivery goes smoothly, so here are some important details about our service:
- For orders above £120, we offer delivery to most mainland UK addresses. For orders under £120, we can still deliver to Northern Ireland and the outlying isles, as long as the item can be sent by Royal Mail, weighs less than 30kg, and fits within 61cm × 46cm × 46cm. Some highland and remote areas may carry an extra delivery charge as couriers often apply surcharges in these locations. If you live in one of these areas, feel free to contact us before ordering so we can confirm the delivery options and costs for you.
- Most of our products include delivery in the price. If your order is under £90, a small delivery fee will apply but do not worry this will always be clearly shown at checkout before you complete your purchase.
- Depending on what you choose at checkout, your order will usually be delivered either the next working day or within 2 working days. For next day delivery please place your order before 2:00pm. Orders are dispatched Monday to Friday only. Some items may take a little longer and if that is the case we will always show the expected delivery time on the product page.
- If your order includes items with different dispatch times we will normally wait and send everything together once all items are in stock. If one of the items is going to take a while we will give you the choice either wait for everything to arrive or let us send the available items now and deliver the rest later. It is up to you.
- We use trusted delivery partners to make sure your order gets to you safely and on time. We use DPD for next working day deliveries and Royal Mail for the 2 day option.
- As soon as your order is on its way we will send you a tracking number by email. If you provide your mobile number at checkout we will also send delivery updates straight to your phone so you can keep an eye on progress.
- If a product is marked as "Dispatched within 3 working days" delivery usually takes around 3 to 5 working days from when your order is placed.
- For customers in Inverness and other parts of the Scottish Highlands deliveries can take up to 2 working days even if you select next day delivery as couriers do not currently offer a guaranteed next day service to those areas.
