In Stock
Delivery Included
1 Year Warranty
FOC (Field-oriented Control) for Super Linearity & High Torque & Extreme Slience
New sensor technology has changed the feel, performance, and overall tune-ability of the new Axe ESC and Motor in ways some have never experienced. Field-oriented Control is the name of this new tech, and is something all new to the scale trail, rock racing, and rc world in-general. This new style of sensor allows extremely accurate control and sensing of the motor while maintaining extreme performance and reliability. The motor and ESC are able to match the RPM of the motor to your throttle position under all driving conditions.
This greatly improves down hill driving giving this system the ability to drive down hill under complete control.FOC technology also makes the whole system extremly silent, the motor doesn't create the annoying PWM noise when it is running.
Intelligent Torque Output & Speed Closed-loop Control for Easy Control
Not just a new ESC and motor, the new FOC sensors, combined with Intelligent Torque output and closed loop speed control mean the ESC and motor will maintain the motor’s Torque level and RPM as the vehicles conditions change. Uphill, down hill, under load, you name it, your Axe system will do what you’re telling it to do.
Battery Reverse Polarity Protection
Hobbywing's AXE FOC Crawler system has been designed with a very unique feature protecting your ESC from damage caused by Battery Reverse Polarity, so no matter how many times you reverse the battery connections the AXE ESC and the paired motor are safe from damage. Maybe this feature is the first in R/C Car industry.
Applicable to All Weather & Track Conditions
The IP-67 waterproof has been taken to a new level with the AXE System. Completely sealed ESC design with robust heatsink case design ensure the ESC is ready for anything you throw at it. The motor as well,is sealed, and combines a completely new sensor harness.No messy extra steps to make your system water proof.
Dual Running Mode
AXE FOC Crawler system supports dual running mode, not only classic "Forward and Reverse (rock crawler)" mode, but also "Forward/Reverse with brake (normal)" mode, to satisfy your application.
Professional Drag Brake Adjustments & Super Parking Capacity
Drag brake rate, and drag brake tuning allows scalers to adjust not only the hill/hold/drag brake, but how quickly the brake applies. This allows high speed driving with out sudden jerks or stops when releasing the throttle. The drag brake itself is super charged, and able to be run at extremely high levels. Compared to a standard crawling brushless setup, the drag brake in the Axe System can be rated at %200 in comparison.
Built-in Bluetooth for Connecting the Mobile APP Directly
Built in Bluetooth connectivity means exactly that. The ESC has Blue Tooth built right in! Nothing extra is needed to access the ESC’s complete on board programming but your smart phone device and the Free Hobbywing App from your App Store. That’s right folks, the Bluetooth feature is BUILT INTO the ESC. No extra devices, wires or connections required!
Easy Obtain AXE Running Status with Real-time Data Recording Function
Connect the HW Link cellphone APP to the ESC and open the real-time data recording function, to check the throttle, voltage, current, temperature, RPM and other data in real-time.
Easy obtain running status of ESC and motor.
Note: Due to transmission distance of bluetooth, the effective distance is about 3m!
Super Internal BEC
The built-in switch mode BEC with a maximum output of 13A and voltage adjustable between 6V and 7.4V allows the use of various standard servos, high voltage servos and other peripherals.
Advanced and Secure Electronic Switch
The dust, dirt, and waterproof switch housing ensures a long reliable life for your ESC, will not suffer from the problems most standard on/off switches encounter.
Multiple Programmable Items
With enough settings to keep your vehicle running “just right”, there are also timing/boost settings, just in case it’s not fast enough, this feature allows you to unleash some extra top speed from your Axe System. Sometimes the trails are long and winding, so more wheel speed is welcome!
Type
Scale - 1/10th
Brushed/Brushless - BL
Sensored/Sensorless - SD
Waterproof - YES
Specifications
Cont./Peak Current - 80A/480A
Input Voltage - 2-3S Lipo/6-9 Cell NiMH
BEC Output - Switch Mode:6V/7.4V@6A
Wires & Connectors
Wires & Connectors - Black-14AWG-200mm*1 Red-14AWG-200mm*1
Output Wires - No
Input Connectors - XT60
Output Connectors - No
ESC Programing via
SET Button on ESC - Not Supported
LED Program Box - Not Supported
LCD Program Box - Not Supported
WiFi Module - Not Supported
Programming Port - Built-in bluetooth
Firmware
Firmware Upgrade - Supported
Size & Weight
Size - 47.4x36.2x26.5mm
Weight - 108g (Including the weight of input line)
Applications
Applications - Only support XERUN AXE R2 motor
Vehicles - 1/10thRock Crawler
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Applicable to All Weather & Track Conditions
Waterproof has been taken to a new level with the Axe System. Completely sealed ESC design with robust heatsink case design ensure the ESC is ready for anything you throw at it. The motor as well, is sealed, and combines a completely new sensor harness. No messy extra steps to make your system water proof.
(Note: please dismantle and clean the motor and put some lubricant onto the bearings after using it in some harsh conditions.)
Built-in High-precision Magnetic Encoder
A high precision magnetic encoder is used in the motor to ensure precision and consistent information is provided to the ESC. This allows the ESC to have more information from the motor than standard “hall” type sensors and provides improved performance and efficiency.
Low Cogging Torque
The AXE R2 Motors have the extremely low cogging effect and torque pulsation.
New Waterproof Sensor Port
The brand new design of new waterproof sensor port has smaller size. Its wiring is simpler and more beautiful than AXR R1 system.
Available in Different Sizes & KVs
Four AXE R2 motors, 540L R2-size 1400KV/2100KV/2800KV & 550-size 3300KV, are applicable to various rock crawlers.
Brand, Model and Product Type
- Brand: Hobbywing
- Model: HW38020311
- Product Type: Hobbywing HW38020311 AXE540L R2 combo with 1400kV motor and FOC ESC, Hobbywing HW38020311 brushless crawler system with built-in Bluetooth, Hobbywing HW38020311 sensored ESC/motor combo with IP67 waterproof rating, Hobbywing HW38020311 with 80A ESC and 13A switch-mode BEC, Hobbywing AXE R2 combo with magnetic encoder and low cogging torque
- Product Colour: Black
Dimensions
- ESC Size: 4.74 cm × 3.62 cm × 2.65 cm – compact footprint for tight crawler chassis layouts
- ESC Weight: 108 g – includes input wiring for simplified installation
- Motor Diameter: Not specified – compatible with 540L R2-size crawler platforms
- Motor Length: Not specified – designed for 1/10 scale rock crawler integration
Electrical and Performance Specifications
- ESC Continuous Current: 80A – supports consistent power delivery for scale trail and rock racing
- ESC Peak Current: 480A – handles sudden bursts during steep climbs and throttle punches
- Motor KV Rating: 1400kV – tuned for low-speed control and torque-rich crawling
- Motor Type: Brushless sensored – optimized for precision and silent operation
- Battery Compatibility: 2–3S LiPo / 6–9 cell NiMH – supports flexible voltage configurations
FOC Technology and Control Features
- Field-Oriented Control: Enables super linear throttle response and silent motor operation
- Intelligent Torque Output: Maintains torque and RPM under changing terrain conditions
- Speed Closed-Loop Control: Matches motor RPM to throttle input for downhill precision
- Dual Running Modes: Supports crawler mode (forward/reverse) and standard mode with brake
- Drag Brake Tuning: Adjustable brake rate and response for hill-hold and parking control
Connectivity and Programming
- Built-in Bluetooth: Connects directly to HW Link mobile app for programming and data logging
- Real-Time Data Recording: Displays throttle, voltage, current, temperature, and RPM
- Firmware Upgrade: Supported via mobile app – no external programmer required
- Bluetooth Range: Approximately 3 metres – ideal for field tuning and diagnostics
Sensor and Motor Design
- Magnetic Encoder: High-precision feedback for smoother transitions and reduced cogging
- Low Cogging Torque: Improves low-speed control and crawling stability
- Waterproof Sensor Harness: Maintains full functionality in wet and dusty conditions
- Modular Motor Structure: Simplifies cleaning and maintenance for long-term reliability
Built-in BEC System
- BEC Type: Switch-mode – supports high-voltage servo systems
- BEC Output Voltage: Selectable between 6V and 7.4V – adaptable to servo requirements
- BEC Output Current: Up to 13A – ensures reliable power delivery for demanding components
Applications
- Vehicle Compatibility: Designed for 1/10 scale rock crawlers
- Use Case: Ideal for scale trail driving, technical crawling, and rock racing
What’s in the Box
- 1 × Hobbywing AXE540L R2 1400kV Sensored Brushless Motor
- 1 × Hobbywing AXE FOC ESC with built-in Bluetooth
What You Require
- 2–3S LiPo or 6–9 cell NiMH battery pack
- Compatible 1/10 scale crawler chassis
- Smartphone with HW Link app for programming and data access
Sold Separately
- Lubricant for motor bearings after use in harsh conditions
Product Description of Hobbywing HW38020311 AXE540L R2 combo with 1400kV motor and FOC ESC
The Hobbywing HW38020311 AXE540L R2 combo with 1400kV motor and FOC ESC is a black, sensored brushless crawler system designed for 1/10 scale trail and rock racing applications. Engineered with Field-Oriented Control (FOC) technology, this combo delivers ultra-silent operation, precise torque output, and unmatched downhill control. Built for extreme terrain and all-weather conditions, the system features IP67 waterproof protection, a built-in Bluetooth module for mobile app programming, and a high-precision magnetic encoder for low cogging torque. Whether you're scaling rocky inclines or navigating technical descents, the Hobbywing HW38020311 brushless crawler system with built-in Bluetooth offers intelligent responsiveness and rugged reliability for serious RC enthusiasts.
Key features of the Hobbywing HW38020311 AXE540L R2 combo
- IP67 waterproof rating – ensures safe operation across mud, snow, and wet terrain
- Built-in Bluetooth – enables direct mobile app programming and real-time data logging
- FOC technology – delivers silent operation and precise throttle control
- High-precision magnetic encoder – improves motor feedback and reduces cogging torque
- 80A ESC output – supports consistent power delivery under load
- 13A switch-mode BEC – adjustable voltage for high-voltage servo compatibility
- Drag brake tuning – allows fine control over downhill speed and parking force
How does FOC technology improve crawling performance?
The Hobbywing HW38020311 sensored ESC/motor combo with IP67 waterproof rating features Field-Oriented Control (FOC), a breakthrough in motor management that enables ultra-smooth throttle response and silent operation. Unlike traditional brushless systems, FOC dynamically matches motor RPM to throttle input, maintaining consistent torque across changing terrain. This precision allows for controlled downhill driving, eliminating jerky deceleration and enhancing grip. The absence of PWM noise also makes the system ideal for scale trail builds where realism and quiet operation are essential.
What benefits does the built-in Bluetooth module offer?
The Hobbywing HW38020311 brushless crawler system with built-in Bluetooth includes a fully integrated Bluetooth module, allowing users to connect directly to the HW Link mobile app. This eliminates the need for external programming cards or modules. Through the app, users can adjust ESC parameters, monitor real-time data such as throttle, voltage, current, temperature, and RPM, and perform firmware upgrades. With a transmission range of approximately 3 metres, the Bluetooth interface simplifies setup and tuning, making the system more accessible and user-friendly.
How does the magnetic encoder enhance motor control?
The Hobbywing AXE R2 combo with magnetic encoder and low cogging torque uses a high-precision magnetic encoder to deliver accurate motor position feedback to the ESC. This advanced sensor technology surpasses traditional hall sensors by providing smoother transitions and improved torque consistency. The result is reduced cogging effect and enhanced low-speed control, which is critical for rock crawling and scale trail driving. The encoder also contributes to the system’s overall efficiency, ensuring stable performance across varied terrain.
Why is drag brake tuning important for rock crawlers?
The Hobbywing 1400kV motor system for 1/10 rock crawlers with drag brake tuning offers advanced brake control that allows users to fine-tune both the strength and responsiveness of the drag brake. This feature enables smooth deceleration without abrupt stops, especially during high-speed transitions. The drag brake can be set to extremely high levels—up to 200% compared to standard systems—providing superior hill-hold capability and parking force. This makes the combo ideal for technical crawling and scale trail scenarios where precise control is essential.
How does the 80A ESC and 13A BEC support demanding builds?
The Hobbywing HW38020311 with 80A ESC and 13A switch-mode BEC delivers consistent power for demanding crawler setups. The ESC’s 80A continuous current rating ensures stable output under load, while the 480A peak capacity handles sudden bursts during steep climbs or throttle punches. The built-in BEC supports up to 13A output with adjustable voltage between 6V and 7.4V, making it compatible with high-voltage servos and auxiliary systems. This combination provides the electrical headroom needed for advanced builds without compromising reliability.
Is the AXE R2 combo suitable for all-weather use?
Absolutely. The Hobbywing HW38020311 sensored ESC/motor combo with IP67 waterproof rating is designed for all-weather and all-terrain operation. Both the ESC and motor are sealed against water and dust ingress, and the sensor harness is engineered to maintain full functionality in wet conditions. This makes the combo ideal for trail runs through mud, snow, and rocky streams. While the IP67 rating ensures robust protection, users are advised to clean and lubricate the motor bearings after exposure to harsh environments to maintain long-term performance.
For builders seeking a quiet, responsive, and waterproof crawler system with advanced tuning capabilities, the best Hobbywing upgrade for silent crawling and downhill control is ready to elevate your trail experience. Buy Hobbywing HW38020311 AXE R2 combo for scale trail and rock racing today.
Technical Specifications of Hobbywing HW38020311 AXE540L R2 combo with 1400kV motor and FOC ESC
Brand, Model and Product Type
- Brand: Hobbywing
- Model: HW38020311
- Product Type: Hobbywing HW38020311 AXE540L R2 combo with 1400kV motor and FOC ESC, Hobbywing HW38020311 brushless crawler system with built-in Bluetooth, Hobbywing HW38020311 sensored ESC/motor combo with IP67 waterproof rating, Hobbywing HW38020311 with 80A ESC and 13A switch-mode BEC, Hobbywing AXE R2 combo with magnetic encoder and low cogging torque
- Product Colour: Black
Dimensions
- ESC Size: 4.74 cm × 3.62 cm × 2.65 cm – compact footprint for tight crawler chassis layouts
- ESC Weight: 108 g – includes input wiring for simplified installation
- Motor Diameter: Not specified – compatible with 540L R2-size crawler platforms
- Motor Length: Not specified – designed for 1/10 scale rock crawler integration
Electrical and Performance Specifications
- ESC Continuous Current: 80A – supports consistent power delivery for scale trail and rock racing
- ESC Peak Current: 480A – handles sudden bursts during steep climbs and throttle punches
- Motor KV Rating: 1400kV – tuned for low-speed control and torque-rich crawling
- Motor Type: Brushless sensored – optimized for precision and silent operation
- Battery Compatibility: 2–3S LiPo / 6–9 cell NiMH – supports flexible voltage configurations
FOC Technology and Control Features
- Field-Oriented Control: Enables super linear throttle response and silent motor operation
- Intelligent Torque Output: Maintains torque and RPM under changing terrain conditions
- Speed Closed-Loop Control: Matches motor RPM to throttle input for downhill precision
- Dual Running Modes: Supports crawler mode (forward/reverse) and standard mode with brake
- Drag Brake Tuning: Adjustable brake rate and response for hill-hold and parking control
Connectivity and Programming
- Built-in Bluetooth: Connects directly to HW Link mobile app for programming and data logging
- Real-Time Data Recording: Displays throttle, voltage, current, temperature, and RPM
- Firmware Upgrade: Supported via mobile app – no external programmer required
- Bluetooth Range: Approximately 3 metres – ideal for field tuning and diagnostics
Sensor and Motor Design
- Magnetic Encoder: High-precision feedback for smoother transitions and reduced cogging
- Low Cogging Torque: Improves low-speed control and crawling stability
- Waterproof Sensor Harness: Maintains full functionality in wet and dusty conditions
- Modular Motor Structure: Simplifies cleaning and maintenance for long-term reliability
Built-in BEC System
- BEC Type: Switch-mode – supports high-voltage servo systems
- BEC Output Voltage: Selectable between 6V and 7.4V – adaptable to servo requirements
- BEC Output Current: Up to 13A – ensures reliable power delivery for demanding components
Applications
- Vehicle Compatibility: Designed for 1/10 scale rock crawlers
- Use Case: Ideal for scale trail driving, technical crawling, and rock racing
What’s in the Box
- 1 × Hobbywing AXE540L R2 1400kV Sensored Brushless Motor
- 1 × Hobbywing AXE FOC ESC with built-in Bluetooth
What You Require
- 2–3S LiPo or 6–9 cell NiMH battery pack
- Compatible 1/10 scale crawler chassis
- Smartphone with HW Link app for programming and data access
Sold Separately
- Lubricant for motor bearings after use in harsh conditions
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.
