Hobbywing XR10 Justock JS2 G3S ESC G2.1 21.5T Brushless Motor ESC Combo 38020373

The Hobbywing XR10 Justock G3S ESC and G2.1 21.5T Sensored Brushless Motor Combo is purpose-built for spec class racing, with fixed zero-degree timing for optimal compliance. Ideal for 1/10 and 1/12 on-road or off-road vehicles, this combo delivers smooth, linear power—making it an excellent choice for both beginner and experienced racers.

Features

• Built-in polarity protection prevents damage from reverse battery connection
• Programmable via OTA wireless module or 3-in-1 program box
• Internal capacitor module eliminates need for external capacitors
• RPM speed limit function with up to 6 selectable settings
• Fixed 0° timing optimised for stock class racing
• BEC supports up to 8A output at selectable 6V or 7.4V
• Supports both clockwise and counterclockwise motor directions
• Advanced protection functions including voltage, temperature, and signal loss
• Data logging capability for performance review
• Durable motor with heat-resistant design and high-precision components
• Sealed motor design prevents dust ingress and assists in heat dissipation
• Easy-to-maintain motor with detachable structure
• Compliant with IFMAR and ROAR standards

Specifications

• ESC Continuous Current: 60A
• ESC Burst Current: 380A
• Battery Compatibility: 2S LiPo only
• BEC Output: 6V/7.4V @ 4A (switch-mode)
• Motor Type Supported: Sensored and sensorless brushless motors
• Motor Limit: 10.5T or greater (3650 size)
• ESC Dimensions: 40.9 x 33.9 x 32.1mm
• ESC Weight: 75.4g (including wires)
• Motor KV Rating: 2050kV
• Motor Scale: 1/10 and 1/12
• Motor Voltage: 2-3S LiPo
• Motor Outer Diameter: 35.9mm
• Motor Length: 52.5mm
• Motor Shaft Diameter: 3.17mm
• Motor Weight: 175g
• Timing: Fixed
• ROAR Approved: Yes

Includes

• Justock G3S ESC
• Justock 21.5T G2.1 brushless motor
• 5V cooling fan
• Sensor cable