Overview

The Hobbywing Combo MAX10 G2 140A ESC with 3665SD 3200KV G3 Motor (HW38020344) represents the latest evolution in brushless RC power systems for 1/10 scale short course trucks and monster trucks. This complete ready-to-run combo brings together Hobbywing's most advanced speed controller technology with a precision-engineered sensored brushless motor, delivering exceptional throttle response, reliability and performance for serious RC enthusiasts across the UK. Whether you're upgrading an existing vehicle or building a new high-performance setup, this combo offers professional-grade electronics with features typically found on competition-winning machines.

The MAX10 G2 ESC represents a significant step forward from previous generations, incorporating substantial improvements in power delivery, thermal management and control precision. When paired with the matching 3665SD G3 motor, this combo unlocks features like advanced turbo timing adjustment up to 32 degrees and enhanced overheating protection. The system is designed for drivers who demand consistent, predictable power across a wide range of driving conditions, from gentle low-speed manoeuvres to full-throttle high-speed runs. The combo's IP67 waterproof rating means you can take your RC vehicle through mud, sand, water and challenging terrain without worrying about damaging the electronics.

For UK RC enthusiasts looking for a brushless RC ESC and motor combo that delivers real performance improvements, reduces operating temperatures, and provides smartphone connectivity for real-time monitoring, the Hobbywing MAX10 G2 combo stands as an excellent choice. This sensored system offers the precision control that serious RC drivers demand, combined with reliability and features that make it suitable for both weekend bashers and competitive racers.

Key Features

• Upgraded Sensored Mode with Improved Waterproof Cable Interface — The MAX10 G2 features an improved waterproof sensored cable connector that works seamlessly with the 3665SD G3 motor, providing a much more responsive and precise throttle feel compared to sensorless systems. This upgraded sensored mode means your RC vehicle responds immediately to stick inputs with excellent linearity at low speeds and explosive acceleration when you need it, giving you the control feel that competitive drivers expect.
• 140A Continuous Current Rating with 880A Peak Current — This ESC is engineered to handle sustained high-current demands, delivering stable power to demanding brushless motors without voltage sag or performance loss. The 140A continuous rating means you can run at full throttle for extended periods without the ESC throttling back due to temperature or current protection, though it will intelligently protect itself and your motor when limits are exceeded.
• Turbo Timing Adjustment Up to 32 Degrees — The MAX10 G2 supports turbo timing adjustment of up to 32 degrees, and when combined with the 3665SD G3 motor, this allows you to increase maximum speed by up to 25 percent compared to standard timing settings. This adjustable feature lets you fine-tune your RC vehicle's performance to suit different tracks, driving styles and battery configurations.
• 74% Increase in Total Capacitor Capacity — Compared to the previous generation MAX10, the G2 features a significantly larger capacitor bank with 74 percent more total capacitance. This larger capacitor bank improves power delivery from your battery to the ESC, avoiding overload conditions that could damage capacitors or reduce performance. The double explosion-proof design adds an extra safety layer to protect against capacitor failure.
• Smart Freewheeling Technology for Higher Efficiency — The MAX10 G2 incorporates smart freewheeling technology that reduces drag and improves overall drive efficiency compared to previous generation ESCs. This efficiency gain translates directly into lower operating temperatures, with the ESC running approximately 25°C cooler than the previous generation under identical conditions. Lower temperatures mean longer lifespan and more reliable operation, especially during extended racing sessions.
• Patented Frameless Smart Fan with Temperature-Controlled Operation — The MAX10 G2 features a patented frameless fan design that maximises airflow to cool the integrated casing. The smart start-stop technology means the fan remains disabled during normal operation to reduce noise and save power, only activating when the ESC temperature rises to a certain level. This intelligent approach delivers silent operation when cooling is not needed, then automatically kicks in for thermal management during demanding runs.
• Stronger Explosive Force with Stable Output Power — The MAX10 G2 delivers stronger acceleration and more stable output power throughout the throttle range compared to the previous generation. This combination of responsive low-end torque and consistent mid-range power gives your RC vehicle a more predictable and controllable feel, whether you're tackling rough terrain or executing precise manoeuvres.
• Excellent Low-Speed Linearity — The ESC provides excellent throttle linearity at low speeds, meaning small throttle stick movements produce proportional and predictable motor speed changes. This precise control at low speeds is essential for technical driving, rock crawling sections, and any situation where smooth, controlled power delivery matters.
• IP67 Waterproof and Dustproof Protection — The entire power system carries IP67 waterproof and dustproof certification, guaranteeing excellent protection against the elements. This means your RC vehicle can safely operate on muddy tracks, sandy beaches, in light rain, through puddles and water crossings, and across snowy terrain without risking damage to the electronics. The waterproof sensored cable interface means sensor signals remain reliable even in wet conditions.
• Data Logging and Real-Time Monitoring via OTA Bluetooth Module — When connected to the optional OTA Bluetooth module and Hobbywing mobile app, the MAX10 G2 provides real-time telemetry data including throttle amount, battery voltage, current draw, motor temperature, speed and more. You can view this information directly on your smartphone within 5 metres of the vehicle, and the system logs historical data for analysis. This allows you to monitor your system health and optimise performance.
• 2-4S LiPo Battery Compatibility — The MAX10 G2 is designed for 2S, 3S and 4S LiPo batteries, offering flexible battery options depending on your vehicle and desired performance level. The 6/7.4V BEC output (with 7.4V available when input is 3S or higher) provides plenty of power for servos and receiver systems, rated at 5A maximum draw.
• XT60 Battery Connector with 4.0mm Gold Motor Bullets — The ESC features XT60 connectors for battery connection and 4.0mm gold-plated bullet connectors for the motor. These high-quality connectors ensure reliable power transfer with minimal voltage drop, and are industry-standard across most modern RC vehicles.
• Sensored Brushless Motor Support with Standard Interface Compatibility — The MAX10 G2 supports both the upgraded G3 sensored cable interface with improved waterproofing and standard sensored motor interfaces, giving you flexibility in motor choices. The ESC also supports sensorless motors, though you lose the throttle response advantages of sensored operation.

Technical Performance

The Hobbywing MAX10 G2 140A ESC paired with the 3665SD 3200KV G3 brushless motor creates a high-performance powertrain engineered for 1/10 scale short course trucks and monster trucks. The motor's 37mm diameter and 65.8mm length (with 5mm shaft) is specifically sized for efficient integration into standard 1/10 chassis designs. At 3200KV, this motor is optimised for 2-3S LiPo operation, delivering strong mid-range torque and respectable top-speed capability without over-revving on smaller battery packs. The four-pole motor design and 0.00555? internal resistance enable smooth power delivery with minimal cogging, whilst the 304.4g mass provides sufficient rotating inertia for stable power output during acceleration and deceleration cycles.

The MAX10 G2 ESC itself measures just 53mm × 39.5mm × 37.2mm and weighs 120g with integrated wiring, making it compact enough for most modern RC chassis whilst providing the cooling area needed for sustained high-current operation. The 140A continuous current rating with 880A peak current capability means this ESC can handle the demanding load profiles of modern brushless motors without hesitation, delivering rock-solid voltage stability even during full-throttle acceleration runs. The integrated 6V and 7.4V BEC system, rated at 5A output, provides ample power for modern servo and receiver systems with margin for expansion. The smart capacitor technology with 74 percent increased total capacitance compared to the previous generation smooths out voltage fluctuations from the battery, improving throttle response and protecting sensitive electronics.

Thermal management is a key strength of the MAX10 G2 design. The patented frameless fan allows large air outlets to direct cooling directly at the heatsink, whilst the smart start-stop technology prevents unnecessary fan operation during gentle driving. The result is approximately 25°C lower operating temperatures compared to previous generation MAX10 ESCs under identical load conditions. The smart freewheeling technology reduces mechanical drag through the ESC's FET outputs, improving overall efficiency and further reducing heat generation. When paired with the 3665SD G3 motor, the system supports overheating protection that monitors motor temperature and throttles back power to prevent damage if the motor becomes too hot.

The sensored operation with upgraded G3 cable interface delivers throttle response that competitive drivers demand. The improved waterproof sensored connector ensures reliable sensor signal transmission even in wet conditions, whilst the enhanced sensor algorithms provide smooth, linear throttle control across the entire range. The 32-degree maximum turbo timing adjustment allows significant speed increases (up to 25 percent with the 3665SD G3 motor) for drivers seeking maximum velocity, though conservative timing settings offer excellent efficiency and reliability for daily driving.

What's in the Box

• Hobbywing MAX10 G2 140A Speed Controller (ESC) with integrated cooling fan and BEC
• Hobbywing 3665SD 3200KV G3 brushless motor with improved sensor interface
• Red 12AWG battery wire (150mm length)
• Black 12AWG battery wire (150mm length)
• XT60 female battery connector pre-fitted to ESC
• 4.0mm gold-plated bullet connectors for motor pre-fitted to ESC

What You Need to Complete

• 2S, 3S or 4S LiPo battery (2-4S compatible, optimised for 2-3S with 3200KV motor)
• LiPo battery charger
• RC receiver compatible with your radio transmitter
• Servo(s) for steering and throttle control
• RC vehicle chassis with space for ESC and motor (1/10 scale short course truck or monster truck recommended)
• Optional: Hobbywing OTA Bluetooth module (sold separately) for real-time data logging and telemetry
• Optional: Hobbywing LCD Program Box for advanced ESC programming (sold separately)
• Optional: Battery connector adapter if your vehicle uses different connector type than XT60
• Optional: Motor cable extension if running long distances between ESC and motor location

Frequently Asked Questions

• Is the Hobbywing MAX10 G2 suitable for beginners? — The MAX10 G2 is an advanced ESC designed primarily for experienced RC drivers and competitive racers rather than complete beginners. However, if you have some RC experience and are upgrading a vehicle, this combo offers excellent value. The sensored brushless motor and responsive ESC will feel smoother and more predictable than budget alternatives, though the 140A rating means it's overkill for smaller brushless motors (under 3000KV). For true beginners, a lower-capacity ESC like the MAX10 G2 80A variant might be more appropriate.
• What battery does the MAX10 G2 combo need? — The MAX10 G2 supports 2S, 3S and 4S LiPo batteries, but the 3200KV motor is optimised for 2S and 3S operation. With 2S LiPo, expect moderate speeds and excellent efficiency; with 3S LiPo, you'll get strong performance and good efficiency; with 4S LiPo, the system is technically compatible but will operate near its thermal limits and may trigger overheating protection frequently. Most owners pair this combo with quality 3S LiPo packs rated for at least 50C discharge capacity (minimum 5000mAh for sustained running).
• What is the maximum speed with the 3200KV motor? — Top speed depends on gearing, battery voltage, and turbo timing settings. With the 32-degree turbo timing available on the MAX10 G2 (which provides up to 25 percent speed increase over stock timing), you can achieve serious velocities. The exact speed requires knowing your vehicle's final gear ratio, but expect speeds in the 50-70+ mph range depending on setup. The 3200KV rating is versatile, offering good acceleration and top-end speed.
• Can I use this ESC with other motors? — Yes, the MAX10 G2 supports both sensored and sensorless brushless motors, though you get the best results pairing it with sensored motors. The ESC's 140A continuous rating means it works best with brushless motors in the 2500-4000KV range (depending on battery voltage). It can technically handle lower KV motors (which draw more current) or higher KV motors (which draw less), but performance and protection features may vary. The overheating protection feature only works when paired with Hobbywing EzRun 3652 or 3665 G3 motors specifically.
• Is this waterproof for water crossings? — The MAX10 G2 carries IP67 waterproof certification, meaning it can handle splashing water, wet mud, light rain and brief water crossings. The IP67 rating means the ESC can be temporarily submerged up to 1 metre for 30 minutes without damage. However, this is not military-grade waterproofing for unlimited underwater operation — it's designed for typical RC off-road use including mud and wet conditions, not intentional water immersion.
• What is the difference between the MAX10 G2 and the previous generation MAX10? — The MAX10 G2 features several significant improvements: 74 percent more capacitor capacity for better power delivery, approximately 25°C lower operating temperatures through smart freewheeling technology, an improved waterproof sensored cable interface for better G3 motor compatibility, stronger acceleration and more stable power output, and better low-speed linearity. The G2 also adds smart fan technology that disables the fan during normal operation for reduced noise.
• Do I need the Bluetooth module for basic operation? — No, the MAX10 G2 operates perfectly without the optional OTA Bluetooth module. The Bluetooth module (sold separately) only adds data logging and real-time telemetry features via smartphone app. It's useful for diagnosing problems and monitoring system health, but not required for normal RC driving.
• What programming options does the MAX10 G2 have? — The MAX10 G2 supports programming via the physical SET button on the ESC itself for basic adjustments, the optional Hobbywing LCD G2 Program Box (sold separately) for comprehensive settings, the optional OTA Programmer with Bluetooth module for wireless programming, and via WiFi using a compatible WiFi module. Most users start with button programming and graduate to the LCD Program Box for fine-tuning.
• What is the motor shaft diameter and will it fit my vehicle? — The 3665SD motor features a standard 5mm diameter shaft with 16.5mm length, which is the most common shaft size used in 1/10 scale RC vehicles. This should fit directly into standard pinion gears and transmission systems for 1/10 trucks and buggies. Check your vehicle's transmission specifications to confirm compatibility before purchase.
• How do I install this combo in my RC vehicle? — Installation involves securing the ESC to your chassis (usually with double-sided tape or velcro on a heat sink), mounting the motor to the transmission or motor mount plate, connecting the motor wires to the ESC bullet connectors, connecting the battery connector to the ESC, connecting the BEC wires to your receiver, and performing ESC calibration with your transmitter. Many retailers offer installation services for a small fee if you prefer professional fitting.
• What is the BEC output and can it power my servo? — The MAX10 G2 provides 6V output at 5A and 7.4V output (available with 3S or higher input) at 5A maximum. This is plenty of power for one or two modern servos with standard power consumption. High-torque digital servos can draw significant current, so if running multiple high-drain servos, consider an external BEC or adding a capacitor to smooth out current spikes.

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 HOBBYWING COMBO MAX10 G2 140A ESC 3665SD 3200KV BLK G3 MOTOR HW38020344 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.