Hobbywing XeRun XR10 Justock G3S 25.5T Brushless Combo HW38020374

The Hobbywing HW38020374 XeRun XR10 Justock G3S Combo pairs a 60A zero-timing sensored brushless ESC with a Justock 3650SD G2.1 25.5T 1600KV motor, providing a matched power system for compatible 1/10 and 1/12 stock, sport and club racing applications.

Features

• Matched Justock Combo: Includes the XeRun XR10 Justock G3S ESC and Justock 3650SD G2.1 25.5T sensored brushless motor
• Zero-Timing Racing Design: Designed for stock and blinky-style racing applications where fixed zero ESC timing is required
• 25.5T Sensored Motor: 1600KV two-pole motor provides smooth, linear throttle response for stock racing, training and suitable crawler applications
• 60A Sensored ESC: Supports both sensored and sensorless 3650 brushless motors rated at 10.5T or higher
• Adjustable RPM Limiter: Current G3S firmware supports selectable RPM limits from 10,000 to 88,000RPM for classes that specify maximum motor speed
• Freewheeling Function: Can reduce ESC operating temperature and alter off-throttle deceleration for improved corner control
• Adjustable High-Voltage BEC: Switch-mode BEC can be set to 6V or 7.4V at 4A continuous output for compatible receivers and steering servos
• Intelligent Cooling Fan: Fan operates automatically when required according to ESC temperature
• Built-In Capacitor Module: Integrated capacitor arrangement reduces the need for a separate external capacitor pack
• Data Logging: Supports operating-data recording and compatible real-time monitoring through optional Hobbywing programming equipment
• Multiple Protection Functions: Includes reverse-polarity, low-voltage, ESC temperature, motor temperature, signal-loss and locked-rotor protection
• Serviceable Motor Design: Detachable motor construction allows cleaning and maintenance of the internal components
• Fixed-Timing Motor: Non-adjustable Hall sensor endbell maintains the intended stock-racing motor specification

Specifications

• Brand: Hobbywing
• Series: XeRun Justock
• Product Type: Sensored Brushless ESC and Motor Combo
• Application: 1/10 and 1/12 On-Road / Off-Road Club Racing and Training
• Combo Part Number: 38020374
• SKU: HW38020374
• Barcode / EAN: 6938994416474

ESC Specifications

• ESC: Hobbywing XeRun XR10 Justock G3S
• ESC Part Number: 30112005
• Motor Type Supported: Sensored / Sensorless Brushless
• Continuous Current: 60A
• Peak Current: 380A
• Battery Input: 2S LiPo Only
• Motor Limit: 3650 Brushless Motor 10.5T or Higher
• BEC Output: 6V / 7.4V at 4A Continuous Switch-Mode
• BEC Maximum Output: Up to 8A
• ESC Timing: Zero-Timing / Blinky Racing Design
• RPM Limiter Range: 10,000–88,000RPM
• Cooling Fan: 25 x 25 x 10mm
• ESC Dimensions: 40.9 x 33.9 x 32.1mm
• ESC Weight: Approximately 75.4g Including Wires
• Input Wires: 14AWG
• Motor Wires: 14AWG
• Battery Connector: Not Factory Fitted
• Motor Connectors: Not Factory Fitted
• Waterproof: No

Motor Specifications

• Motor: Hobbywing Justock 3650SD G2.1
• Motor Part Number: 30408013
• Motor Turns: 25.5T
• KV Rating: 1600KV
• Motor Type: Sensored Brushless
• Pole Count: 2
• Motor Timing: Fixed
• Motor Battery Capability: 2S–3S LiPo When Used with a Suitable ESC
• No-Load Current: 2.8A
• Resistance: 0.104 Ohm
• Published Maximum Output Power Test Value: 86W
• Current at Maximum Output Power: 25A
• Motor Diameter: 35.9mm
• Motor Length: 52.5mm
• Shaft Diameter: 3.17mm
• Exposed Shaft Length: 15mm
• Motor Weight: Approximately 173g

Includes

• 1 x Hobbywing XeRun XR10 Justock G3S 60A Brushless ESC
• 1 x Hobbywing Justock 3650SD G2.1 25.5T 1600KV Sensored Brushless Motor
• 1 x Cooling Fan
• 1 x Sensor Cable

FAQ

Is Hobbywing HW38020374 the 25.5T version? Yes. Hobbywing identifies combo part 38020374 as the XR10 Justock G3S package with the Justock G2.1 25.5T 1600KV motor.

Can this combo run on 3S LiPo? No when used as the supplied combo. Although the 25.5T motor itself is rated for 2S–3S LiPo with a suitable ESC, the included XR10 Justock G3S ESC supports 2S LiPo only. The complete HW38020374 system must therefore be operated on 2S LiPo.

Is this a sensored brushless system? Yes. The included 25.5T motor is sensored and a sensor cable is supplied, allowing smooth and precise throttle response when connected to the G3S ESC.

Is the XR10 Justock G3S suitable for blinky racing? Yes. Hobbywing designed the G3S for zero-timing stock and club racing. Always check the exact motor-turn, RPM-limit and ESC rules of your local racing class before competing.

Does the combo come with battery and motor connectors fitted? No. Hobbywing specifies the G3S with input and motor wires but no factory-fitted power or motor connectors. Soldering of suitable connectors or direct motor wiring is required during installation.

Can the 25.5T motor be used in a rock crawler? Hobbywing lists the 21.5T and 25.5T Justock G2.1 motors as suitable for selected rock crawler applications. Vehicle weight, gearing and intended use must still be appropriate, and the included G3S ESC remains limited to 2S LiPo.

Is a programming box included? No. Compatible Hobbywing LCD PRO and OTA programming equipment is available separately. Some programming functions can also be accessed through the ESC's SET button depending on the setting.

Important Notes

• The included XR10 Justock G3S ESC supports 2S LiPo only
• Do not use a 3S LiPo with the supplied G3S ESC even though the motor itself can support 3S with a different suitable ESC
• Battery and motor connectors are not factory fitted, so soldering is required
• The ESC is not waterproof
• Check local stock, blinky or spec-class regulations before racing, as permitted motor turns and RPM limits vary between clubs and classes
• Hobbywing advises that Justock motors are not intended for high-load 4WD monster trucks or other heavy applications requiring substantially greater power
• Set the correct gear ratio and monitor motor and ESC temperatures after installation