Delivery Included
1 Year Warranty
The Spektrum M-SPMX-1046 Firma 4274 2250Kv sensored brushless motor for 1/8 scale RC is precision-engineered for racers and bashers who demand smooth throttle control, high-efficiency power, and rugged durability. Designed to pair seamlessly with the Firma 130A Smart Sensored ESC (SPMXSE2130S), this motor delivers consistent torque and low-cog performance across 3S–6S LiPo setups. Whether you're tuning a 4WD buggy for track precision or building a truggy for aggressive terrain, the Spektrum M-SPMX-1046 motor provides the responsiveness and strength needed to dominate every surface with confidence.
Key features of the Spektrum M-SPMX-1046 motor
- 2250Kv output – delivers high-RPM torque for 1/8 scale racing and bashing
- 4-pole rotor – ensures smooth acceleration and reduced cogging under load
- 5mm hardened steel shaft – supports high-impact drivetrain setups
- Insulated copper windings – improve thermal efficiency and electrical integrity
- Solder tab output leads – simplify ESC integration and reduce connection resistance
- CNC-machined aluminum housing – enhances cooling and structural rigidity
- Precision ball bearings – support smooth rotation and long-term durability
How does the 2250Kv rating enhance 1/8 scale performance?
The Spektrum 2250Kv motor with hardened steel shaft and solder tab output leads is tuned for high-RPM output, making it ideal for competitive 1/8 scale platforms. Its Kv rating provides the speed and torque balance needed for rapid acceleration and sustained top-end performance. Whether you're navigating tight corners or launching off jumps, the motor’s power profile ensures consistent delivery across the throttle range, giving drivers the edge in both racing and bashing scenarios.
Why is the 4-pole rotor design critical for throttle smoothness?
The Spektrum M-SPMX-1046 with low-cog rotor and CNC-machined aluminum housing features a 4-pole, 8-magnet rotor that minimizes cogging and enhances throttle response. This design improves magnetic resolution, allowing for finer control at low speeds and smoother transitions during acceleration. The rotor’s construction also supports high torque output without sacrificing efficiency, making it ideal for terrain changes, cornering precision, and aggressive throttle inputs.
What makes this motor ideal for 3S–6S LiPo setups?
The Spektrum M-SPMX-1046 sensored motor for 3S–6S LiPo setups with Firma 130A ESC is built to handle high-voltage power systems while maintaining thermal stability and electrical efficiency. Its insulated copper windings and CNC-machined housing work together to dissipate heat and preserve performance during extended runs. When paired with the Firma 130A Smart Sensored ESC, the motor supports telemetry feedback and adaptive timing control, giving users full command over their powertrain configuration.
How do the construction materials support durability?
The Spektrum M-SPMX-1046 4-pole motor with 5mm shaft and insulated copper windings is built with hardened alloy steel and high-purity copper to withstand mechanical stress and thermal load. Its 5mm output shaft resists flex and deformation under torque, while the solder tab leads ensure secure electrical connections. The CNC-machined aluminum housing adds rigidity and cooling efficiency, and the precision ball bearings reduce friction for smoother operation and extended motor life.
Is this motor suitable for both buggies and truggies?
Yes. The Spektrum Firma motor for truggies and buggies with precision ball bearings is designed for versatility across 1/8 scale platforms. Its compact 4274 size and robust construction make it compatible with a wide range of chassis configurations. Whether you're building a lightweight buggy for track performance or a heavy-duty truggy for off-road bashing, the motor’s torque delivery and smooth rotation provide the control and reliability needed for demanding applications.
Why is this motor a strategic upgrade for sensored ESC users?
The Spektrum M-SPMX-1046 Firma 4274 2250Kv sensored brushless motor for 1/8 scale RC is optimized for use with the Firma 130A Smart Sensored ESC, enabling advanced timing control and real-time telemetry. Its sensored design allows for cog-free launches, adaptive throttle mapping, and precise speed regulation. For users seeking the best Spektrum upgrade for smooth throttle control and high-efficiency power, this motor delivers unmatched responsiveness and integration with Smart ESC systems.
For racers and bashers looking to elevate their 1/8 scale builds, the affordable Spektrum Firma 4274 2250Kv motor for 4WD buggy and truggy builds offers premium performance, rugged construction, and seamless ESC compatibility. Buy Spektrum M-SPMX-1046 sensored motor for 1/8 scale racers and bashers.
Product Description of Spektrum M-SPMX-1046 Firma 4274 2250Kv sensored brushless motor for 1/8 scale RC
The Spektrum M-SPMX-1046 Firma 4274 2250Kv sensored brushless motor for 1/8 scale RC is precision-engineered for racers and bashers who demand smooth throttle control, high-efficiency power, and rugged durability. Designed to pair seamlessly with the Firma 130A Smart Sensored ESC (SPMXSE2130S), this motor delivers consistent torque and low-cog performance across 3S–6S LiPo setups. Whether you're tuning a 4WD buggy for track precision or building a truggy for aggressive terrain, the Spektrum M-SPMX-1046 motor provides the responsiveness and strength needed to dominate every surface with confidence.
Key features of the Spektrum M-SPMX-1046 motor
- 2250Kv output – delivers high-RPM torque for 1/8 scale racing and bashing
- 4-pole rotor – ensures smooth acceleration and reduced cogging under load
- 5mm hardened steel shaft – supports high-impact drivetrain setups
- Insulated copper windings – improve thermal efficiency and electrical integrity
- Solder tab output leads – simplify ESC integration and reduce connection resistance
- CNC-machined aluminum housing – enhances cooling and structural rigidity
- Precision ball bearings – support smooth rotation and long-term durability
How does the 2250Kv rating enhance 1/8 scale performance?
The Spektrum 2250Kv motor with hardened steel shaft and solder tab output leads is tuned for high-RPM output, making it ideal for competitive 1/8 scale platforms. Its Kv rating provides the speed and torque balance needed for rapid acceleration and sustained top-end performance. Whether you're navigating tight corners or launching off jumps, the motor’s power profile ensures consistent delivery across the throttle range, giving drivers the edge in both racing and bashing scenarios.
Why is the 4-pole rotor design critical for throttle smoothness?
The Spektrum M-SPMX-1046 with low-cog rotor and CNC-machined aluminum housing features a 4-pole, 8-magnet rotor that minimizes cogging and enhances throttle response. This design improves magnetic resolution, allowing for finer control at low speeds and smoother transitions during acceleration. The rotor’s construction also supports high torque output without sacrificing efficiency, making it ideal for terrain changes, cornering precision, and aggressive throttle inputs.
What makes this motor ideal for 3S–6S LiPo setups?
The Spektrum M-SPMX-1046 sensored motor for 3S–6S LiPo setups with Firma 130A ESC is built to handle high-voltage power systems while maintaining thermal stability and electrical efficiency. Its insulated copper windings and CNC-machined housing work together to dissipate heat and preserve performance during extended runs. When paired with the Firma 130A Smart Sensored ESC, the motor supports telemetry feedback and adaptive timing control, giving users full command over their powertrain configuration.
How do the construction materials support durability?
The Spektrum M-SPMX-1046 4-pole motor with 5mm shaft and insulated copper windings is built with hardened alloy steel and high-purity copper to withstand mechanical stress and thermal load. Its 5mm output shaft resists flex and deformation under torque, while the solder tab leads ensure secure electrical connections. The CNC-machined aluminum housing adds rigidity and cooling efficiency, and the precision ball bearings reduce friction for smoother operation and extended motor life.
Is this motor suitable for both buggies and truggies?
Yes. The Spektrum Firma motor for truggies and buggies with precision ball bearings is designed for versatility across 1/8 scale platforms. Its compact 4274 size and robust construction make it compatible with a wide range of chassis configurations. Whether you're building a lightweight buggy for track performance or a heavy-duty truggy for off-road bashing, the motor’s torque delivery and smooth rotation provide the control and reliability needed for demanding applications.
Why is this motor a strategic upgrade for sensored ESC users?
The Spektrum M-SPMX-1046 Firma 4274 2250Kv sensored brushless motor for 1/8 scale RC is optimized for use with the Firma 130A Smart Sensored ESC, enabling advanced timing control and real-time telemetry. Its sensored design allows for cog-free launches, adaptive throttle mapping, and precise speed regulation. For users seeking the best Spektrum upgrade for smooth throttle control and high-efficiency power, this motor delivers unmatched responsiveness and integration with Smart ESC systems.
For racers and bashers looking to elevate their 1/8 scale builds, the affordable Spektrum Firma 4274 2250Kv motor for 4WD buggy and truggy builds offers premium performance, rugged construction, and seamless ESC compatibility. Buy Spektrum M-SPMX-1046 sensored motor for 1/8 scale racers and bashers.
Technical Specifications of Spektrum M-SPMX-1046 Firma 4274 2250Kv sensored brushless motor for 1/8 scale RC
Brand, Model and Product Type
- Brand: Spektrum
- Model: M-SPMX-1046
- Product Type: Spektrum M-SPMX-1046 Firma 4274 2250Kv sensored brushless motor for 1/8 scale RC, Spektrum M-SPMX-1046 4-pole motor with 5mm shaft and insulated copper windings, Spektrum M-SPMX-1046 sensored motor for 3S–6S LiPo setups with Firma 130A ESC, Spektrum M-SPMX-1046 with low-cog rotor and CNC-machined aluminum housing, Spektrum Firma motor for truggies and buggies with precision ball bearings, Spektrum 2250Kv motor with hardened steel shaft and solder tab output leads
Dimensions
- Motor Size: 4274 – measures 4.1 cm in diameter and 7.4 cm in length
- Outer Diameter: 4.1 cm – compact for 1/8 scale chassis integration
- Product Length: 7.4 cm – fits standard 1/8 scale motor mounts
- Shaft Diameter: 0.5 cm – hardened steel for high-impact drivetrain compatibility
- Shaft Length: 1.9 cm – supports secure pinion gear installation
- Weight: 360 g (12.7 oz) – balanced for durability and performance
Performance and Power
- Kv Rating: 2250Kv – tuned for high-RPM torque and responsive throttle
- Number of Poles: 4 – delivers smooth acceleration and reduced cogging
- Input Voltage: 3S–6S LiPo – supports high-voltage setups for racing and bashing
- Motor Type: Brushless – efficient and low-maintenance design
- Sensored: Yes – enables fine throttle control and cog-free launches
Construction and Materials
- Rotor Design: Low-cog 4-pole 8-magnet – enhances throttle smoothness
- Windings: Insulated high-purity copper – improves thermal efficiency and conductivity
- Shaft Material: Hardened alloy steel – resists flex and wear under load
- Housing: CNC-machined aluminum – improves cooling and structural rigidity
- Bearings: Precision ball bearings – support smooth rotation and extended lifespan
Connectivity and Integration
- Motor Output Lead: Solder tabs – allow secure, low-resistance ESC connections
- Connector Type: ESC-side solder tabs – compatible with custom wiring setups
- ESC Compatibility: Recommended with Spektrum Firma 130A Smart Sensored ESC (SPMXSE2130S)
Application and Use Case
- Vehicle Type: 1/8 scale truggies and buggies – optimized for racing and off-road bashing
- Driving Style: High-speed, torque-demanding applications with precision control
- Throttle Response: Smooth and adaptive – ideal for competitive and recreational use
What’s in the Box
- (1) Spektrum Firma 4274 2250Kv 4-Pole Sensored Brushless Motor – model M-SPMX-1046
- (1) Product Manual
What You Require
- (1) Compatible ESC – Spektrum Firma 130A Smart Sensored ESC (SPMXSE2130S) recommended
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.
