Brand, Model and Product Type

• Brand: Hobbywing
• Model: HW38020345
• Product Type: Hobbywing HW38020345 combo with MAX10 G2 ESC and 3665SD 4000KV G3 motor, Hobbywing HW38020345 brushless system for 1/10 short course and monster trucks, Hobbywing HW38020345 sensored ESC/motor combo with IP67 waterproof rating, Hobbywing HW38020345 with 140A ESC and 32° turbo timing support, Hobbywing MAX10 G2 combo with smart fan control and 74% capacitor upgrade
• Product Colour: Black

Dimensions

• Motor Diameter: 3.7 cm – compact sizing for 1/10 scale truck integration
• Motor Length: 6.58 cm – optimized for high-efficiency rotor and winding structure
• Motor Shaft Diameter: 3.17 mm – precision-machined for secure gear engagement
• Motor Shaft Length: 1.65 cm – compatible with standard 1/10 drivetrain systems
• Motor Weight: 297.2 g – engineered for thermal stability and durability

Electrical and Performance Specifications

• ESC Continuous Current: 140A – delivers stable power for high-performance 1/10 builds
• Motor KV Rating: 4000KV – tuned for high-speed responsiveness and torque-rich acceleration
• Motor Pole Count: 4 – ensures consistent torque delivery across the RPM range
• No-Load Current: 8.2A – indicates efficient energy draw during idle operation
• Motor Resistance: 0.00495Ω – supports low heat generation and high drive efficiency
• Battery Compatibility: 2–3S LiPo – supports flexible voltage configurations for off-road performance

Cooling and Protection Systems

• IP67 Waterproof Rating: ESC and motor are sealed against water, dust, and debris
• Smart Fan Control: Frameless fan activates only when temperature exceeds preset threshold
• Capacitor Upgrade: 74% increase in total capacitance – improves power delivery and overload protection
• Overheat Protection: Integrated into capacitor system to prevent thermal damage
• Smart Freewheeling: Enhances drive efficiency and reduces operating temperature by up to 25°C

Connectivity and Programming

• OTA Bluetooth Module Support: Enables real-time data monitoring and firmware updates via mobile app
• Data Logging: Records throttle, voltage, current, temperature, and speed for post-run analysis

Turbo Timing and Speed Enhancement

• Turbo Timing Adjustment: Up to 32° – boosts motor speed by up to 25% with compatible G3 motors

Applications

• Vehicle Compatibility: Designed for 1/10 short course trucks, monster trucks, and off-road builds
• Use Case: Ideal for high-speed terrain, competitive racing, and aggressive bashing

What’s in the Box

• 1 × Hobbywing MAX10 G2 140A ESC
• 1 × Hobbywing 3665SD 4000KV G3 Sensored Brushless Motor

What You Require

• 2–3S LiPo battery pack
• Compatible 1/10 scale truck chassis
• OTA Bluetooth module for app connectivity and data logging

Sold Separately

• OTA Bluetooth module

Product Description of Hobbywing HW38020345 combo with MAX10 G2 ESC and 3665SD 4000KV G3 motor

The Hobbywing HW38020345 combo with MAX10 G2 ESC and 3665SD 4000KV G3 motor is a black, sensored brushless system engineered for 1/10 short course and monster trucks. Designed for high-speed control, torque-rich acceleration, and silent operation, this combo integrates IP67 waterproof protection, smart fan control, and advanced turbo timing support. Whether you're racing across packed dirt or powering through off-road terrain, the Hobbywing HW38020345 brushless system for 1/10 short course and monster trucks delivers responsive throttle performance, efficient power delivery, and real-time app monitoring for precision tuning. Built to withstand demanding conditions, this system is ideal for drivers who prioritize configurability, durability, and speed.

Key features of the Hobbywing HW38020345 combo

• IP67 waterproof rating – protects ESC and motor from water, dust, and debris
• Smart fan control – activates cooling only when needed to reduce noise and power draw
• 32° turbo timing support – unlocks up to 25% more speed with compatible G3 motors
• 74% capacitor upgrade – enhances power delivery and prevents overload damage
• 4000KV motor – optimized for high-speed responsiveness and torque stability
• Real-time app monitoring – enables live data tracking and post-run diagnostics

How does IP67 waterproofing improve off-road reliability?

The Hobbywing HW38020345 sensored ESC/motor combo with IP67 waterproof rating is built to perform in harsh environments. Its sealed ESC and motor construction protects internal electronics from mud, snow, sand, and water, ensuring consistent operation across all terrain types. The waterproof sensor cable interface eliminates the need for additional sealing steps, making installation cleaner and more reliable. This level of protection makes the combo ideal for off-road builds that demand resilience and uninterrupted performance.

What makes smart fan control a performance advantage?

The Hobbywing MAX10 G2 combo with smart fan control and 74% capacitor upgrade features intelligent start-stop technology that activates the frameless fan only when internal temperatures exceed a preset threshold. This reduces mechanical wear, lowers noise levels, and conserves energy during low-load operation. The upgraded capacitor bank increases total capacitance by 74%, improving power delivery and protecting against overload. These enhancements ensure thermal stability and extend the lifespan of the ESC under demanding conditions.

How does turbo timing enhance speed and responsiveness?

The Hobbywing HW38020345 with 140A ESC and 32° turbo timing support allows users to unlock up to 32 degrees of timing advance, boosting motor speed by up to 25% when paired with compatible EzRun G3 motors. This feature is ideal for racers seeking extra top-end performance without sacrificing control. Turbo timing is software-controlled and adjustable via the mobile app, enabling precise tuning for different track conditions and driving styles. It adds a layer of configurability that competitive drivers will appreciate.

What defines the 4000KV motor’s performance profile?

The Hobbywing 4000KV motor system with 4-pole rotor and 3.17mm shaft diameter is engineered for high-speed control and torque-rich acceleration. Its 4-pole rotor ensures consistent torque across the RPM range, while the 3.17mm shaft provides secure gear engagement for 1/10 scale drivetrains. With a no-load current of 8.2A and resistance of 0.00495Ω, the motor delivers efficient energy usage and thermal control. This configuration makes it ideal for short course and monster truck builds that require both speed and durability.

How does real-time app monitoring improve tuning?

The affordable Hobbywing ESC/motor combo with OTA Bluetooth and data logging features supports real-time monitoring via the HW Link mobile app. After connecting the ESC to the OTA Bluetooth module, users can view live data including throttle input, voltage, current, temperature, and speed. The app also stores historical data for post-run analysis, helping users fine-tune performance and identify potential issues. This feature adds transparency and control, making it easier to optimize settings for different terrain and driving styles.

Is this combo suitable for high-efficiency builds?

Absolutely. The Hobbywing HW38020345 combo with MAX10 G2 ESC and 3665SD 4000KV G3 motor supports 2–3S LiPo setups, making it ideal for high-efficiency off-road builds. The 140A ESC delivers stable current under load, while smart freewheeling technology reduces heat generation and improves drive efficiency. With operating temperatures approximately 25°C lower than the previous generation, the combo maintains performance even under extreme conditions, ensuring long-term reliability and consistent output.

For builders seeking a waterproof, high-speed, and tunable power system with advanced monitoring capabilities, the best Hobbywing upgrade for 1/10 off-road builds with silent operation and high torque is ready to deliver. Buy Hobbywing HW38020345 combo for 2–3S LiPo setups and real-time app monitoring today.

Technical Specifications of Hobbywing HW38020345 combo with MAX10 G2 ESC and 3665SD 4000KV G3 motor

Brand, Model and Product Type

• Brand: Hobbywing
• Model: HW38020345
• Product Type: Hobbywing HW38020345 combo with MAX10 G2 ESC and 3665SD 4000KV G3 motor, Hobbywing HW38020345 brushless system for 1/10 short course and monster trucks, Hobbywing HW38020345 sensored ESC/motor combo with IP67 waterproof rating, Hobbywing HW38020345 with 140A ESC and 32° turbo timing support, Hobbywing MAX10 G2 combo with smart fan control and 74% capacitor upgrade
• Product Colour: Black

Dimensions

• Motor Diameter: 3.7 cm – compact sizing for 1/10 scale truck integration
• Motor Length: 6.58 cm – optimized for high-efficiency rotor and winding structure
• Motor Shaft Diameter: 3.17 mm – precision-machined for secure gear engagement
• Motor Shaft Length: 1.65 cm – compatible with standard 1/10 drivetrain systems
• Motor Weight: 297.2 g – engineered for thermal stability and durability

Electrical and Performance Specifications

• ESC Continuous Current: 140A – delivers stable power for high-performance 1/10 builds
• Motor KV Rating: 4000KV – tuned for high-speed responsiveness and torque-rich acceleration
• Motor Pole Count: 4 – ensures consistent torque delivery across the RPM range
• No-Load Current: 8.2A – indicates efficient energy draw during idle operation
• Motor Resistance: 0.00495Ω – supports low heat generation and high drive efficiency
• Battery Compatibility: 2–3S LiPo – supports flexible voltage configurations for off-road performance

Cooling and Protection Systems

• IP67 Waterproof Rating: ESC and motor are sealed against water, dust, and debris
• Smart Fan Control: Frameless fan activates only when temperature exceeds preset threshold
• Capacitor Upgrade: 74% increase in total capacitance – improves power delivery and overload protection
• Overheat Protection: Integrated into capacitor system to prevent thermal damage
• Smart Freewheeling: Enhances drive efficiency and reduces operating temperature by up to 25°C

Connectivity and Programming

• OTA Bluetooth Module Support: Enables real-time data monitoring and firmware updates via mobile app
• Data Logging: Records throttle, voltage, current, temperature, and speed for post-run analysis

Turbo Timing and Speed Enhancement

• Turbo Timing Adjustment: Up to 32° – boosts motor speed by up to 25% with compatible G3 motors

Applications

• Vehicle Compatibility: Designed for 1/10 short course trucks, monster trucks, and off-road builds
• Use Case: Ideal for high-speed terrain, competitive racing, and aggressive bashing

What’s in the Box

• 1 × Hobbywing MAX10 G2 140A ESC
• 1 × Hobbywing 3665SD 4000KV G3 Sensored Brushless Motor

What You Require

• 2–3S LiPo battery pack
• Compatible 1/10 scale truck chassis
• OTA Bluetooth module for app connectivity and data logging

Sold Separately

• OTA Bluetooth module

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.