Hobbywing XR10 Justock G3S ESC Combo With G2.1 17.5T Motor
Brand: Hobbywing
Part No: HW38020372
In Stock: Usually ships same day
The Hobbywing XR10 Justock G3S ESC Combo with G2.1 17.5T Motor (HW38020372) pairs a zero‑timing spec ESC with a fixed‑timing 17.5T Justock motor for fair, consistent performance in stock and spec racing. Reliable hardware and refined software deliver smooth, linear power with robust protection features and easy setup.
Key ESC Features
- Zero‑timing firmware permanently set to 0° for spec racing parity
- Built‑in capacitor to simplify installation and save space
- Reverse‑polarity protection to safeguard the ESC from incorrect battery connection
- Multiple protections: low‑voltage cut‑off, over‑temperature, failsafe (signal loss) and motor lock‑up
- RPM speed limit function with up to 79 selectable limits
- Firmware upgradable via Multi‑function LCD Program Box Pro or OTA Programmer (both available separately)
ESC Specifications
- Scale: 1/10 & 1/12
- Brushless; Sensored/Sensorless
- Cont./Peak Current: 60A / 380A
- Input Voltage: 2S LiPo only
- BEC (switch mode): 6.0V/7.4V @ 4A
- Waterproof: No
- Input wires: 14AWG 200mm (black x1, red x1)
- Output wires: 14AWG 200mm (black x3)
- Input/Output connectors: None
- Fan: 25 × 25 × 10mm (5–7.4V)
- Programming: LCD Program Box G2/Pro supported; OTA Module WiFi supported
- Size: 40.9 × 33.9 × 32.1mm
- Weight: 75.4g (including wires)
Justock G2.1 17.5T Motor Highlights
- Fixed timing with sensored control for smooth, linear throttle
- Heat‑resistant magnet bonded to an aluminium case
- Double‑insulated windings, high‑precision bearings and a robust rotor
- Built‑in Hall sensor and non‑adjustable end bell for consistent spec performance
- Silicone O‑ring between end bell and stator to aid heat transfer and help protect the Hall sensor
- Case designed for straightforward cleaning and maintenance
- Complies with IFMAR and ROAR specifications
Motor Specifications
- Scale: 1/10 & 1/12
- Brushless; Sensored
- Timing: Fixed
- KV: 2450KV
- LiPo: 2–3S
- No‑load current: 3.5A
- Size (D × L): 35.9 × 52.5mm
- Shaft diameter: 3.17mm
- Bearing (F/R): 9.525 × 3.175 × 3.967mm
- Poles: 2
- Weight: 176g
Suggested Compatibility
- 1/10th touring, 1/12th pan and F1 zero‑timing spec racing
- Stock/Sport class 1/10th buggy, truck, on‑road and drift applications
Secured by Stripe
The XERUN XR10 JUSTOCK G3S ESC is specifically designed for Zero-timing racing class. Its timing system has been permanently set to ZERO degree. Using the same branded motor and winding will ensure that every racer will have the same power system for 100% fair and competitive racing.
Reliable hardware combined with advanced software technology allows the XERUN XR10 JUSTOCK G3S to not only provide high power output, but also overload protection of the ESC circuit.
This ESC is designed for 1/10th scale touring cars & 1/12th scale pan cars as well as the ever popular F1 series cars for all Zero-timing spec racing. The ESC features an RPM speed limit function and is able to support up to 79 different RPM speed selections to meet the needs and demands of various competitions in the world.
- The built-in capacitor avoids the trouble of finding installation position for the external capacitor module, saves space and is convenient for layout
- The built-in reverse connection protection circuit prevents damaging ESC due to reverse connection of battery
- Multiple protection circuits, battery low-voltage cut-off protection, over temperature protection, fail safe (throttle signal loss protection) and motor lock-up protection
- Supports firmware upgrade of ESC (Multi-function LCD program box Pro or OTA Programmer need to be purchased)
- Supports various RPM limit values to meet the needs of different races. It can be set directly by the program box pro or OTA programmer
Scale: 1/10 & 1/12
Brushed/Brushless: Brushless
Sensored/Sensorless: Sensorless/Sensored
Waterproof: No
Motor Limit: >10.5
Cont./Peak Current: 60A/380A
Input Voltage: 2S Lipo Only
BEC Output: Switch Mode: 6.0v/7.4V @4A
Input Wires: Black-14AWG-200mm*1 Red-14AWG-200mm*1
Output Wires: Black-14AWG-200mm*3
Input Connectors: No
Output Connectors: No
Fan Size: 25 x 25 x 10mm
Voltage Range: 5-7.4V
LCD Program Box: G2/PRO Supported
OTA Module: WiFi Supported
Size: 40.9 x 33.9 x 32.1mm
Weight: 75.4g (inc Wires)
Following on from the success of the HobbyWing Justock G2 the Justock G2.1 feature fixed timing and easy to use solder joints, making it an excellent motor for stock or sport class races where a controlled motor is needed.
The Justock G2.1 has a heat-resistant magnet attached to the aluminium case, double insulated windings, high precision bearings and a rotor with a strong structure which guarantees outstanding performance and increased durability. The built-in hall sensor and non-adjustable end bell combined with the high precision balanced rotor guarantees a smooth linear power delivery.
The silicon 'o'-ring seal fitted between the end bell and stator helps to conduct inner heat to the motor case and prevent dust from entering the hall sensor. The case is designed for daily cleaning and maintenance which can prolong the service life of the motor and improve its operating efficiency.
This motor is perfectly matched with the XR10-Justock G3S ESC for all zero timing spec racing and also compatible with other Hobbywing Electronic Speed Controllers.
Features- Heat-resistant magnet and aluminium case
- High precision balanced rotor
- Applicable to 1/10th, 1/12th on-road and off-road vehicles
- Perfectly matched with the XR10-Justock G3S ESC
- Complies with IFMAR, and ROAR specifications
Scale: 1/10 & 1/12
Brushed/Brushless: Brushless
Sensored/Sensorless: Sensored
Timing: Fixed
KV: 2450KV
LiPo's: 2-3S
No-Load Current: 3.5A
Diameter / Length: 35.9mm (1.41") 52.5mm (2.07")
Shaft Diameter 3.17mm (0.125")
Bearing Size (Front/Rear): 9.525*3.175*3.967mm
Poles: 2
Weight: 176g
Applications: Stock/Sport Class 1/10th Buggy, Truck, On-Road, Drift Class
Key Info:
- Brand: Hobbywing
- Part No: HW38020372
- Barcode: 6938994416825
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