HOBBYWING XERUN XR10 JUSTOCK G3S BRUSHLESS SPEED CONTROL HW30112005

Overview

The Hobbywing XERUN XR10 JUSTOCK G3S Brushless Speed Controller is a purpose-built electronic speed control designed specifically for zero-timing racing class competition. This high-performance brushless ESC represents the pinnacle of competition-grade RC electronics for UK racers who demand precision, reliability and consistency. Whether you're competing in 1/10th scale touring car racing or 1/12th scale pan car championships, the XR10 JUSTOCK G3S delivers the exact performance characteristics required for fair and competitive racing environments across the UK and beyond.

The timing system on this brushless speed controller has been permanently set to zero degrees, which means that when paired with the same branded motor, every racer using this ESC will have identical power system characteristics. This guarantees 100% fair competition and eliminates any performance advantage gained through timing adjustments. The XR10 JUSTOCK G3S combines reliable hardware engineering with advanced software technology to provide not only impressive power output but also comprehensive circuit protection that keeps your RC car running smoothly race after race.

This ESC is engineered for 1/10th scale touring cars, 1/12th scale pan cars and F1 series RC cars competing in zero-timing specification racing. The robust construction and intelligent control systems mean you can focus entirely on your driving technique rather than worrying about electronic reliability. RC enthusiasts across the UK trust Hobbywing for competition-grade electronics, and the XR10 JUSTOCK G3S continues that tradition of excellence.

Key Features

• Zero-Timing Specification Design — The timing is permanently locked at zero degrees to ensure completely fair racing conditions where every competitor using this ESC has identical electrical characteristics, eliminating any competitive advantage from timing adjustments.
• Intelligent Fan Control with Automatic Start and Stop — The ESC features an intelligent cooling system that only activates the fan when temperatures reach a preset threshold, reducing unnecessary noise and power consumption whilst maintaining optimal operating temperatures for consistent performance.
• Freewheeling Function — With freewheeling enabled, the ESC temperature remains lower, the vehicle decelerates more quickly when throttle is released, and cornering controllability is significantly improved compared to standard ESC operation.
• Built-in Polarity Protection — Reversed battery connections are a common cause of ESC damage, but this speed controller includes comprehensive reverse polarity protection to prevent accidental damage from battery terminal reversal or short circuits.
• 79 Selectable RPM Limits — Supporting RPM limits ranging from 10,000 to 88,000 RPM with 79 different selectable values, this ESC meets the regulations of virtually every competition format worldwide and can be programmed via LCD programming box or OTA wireless module.
• Built-in Capacitor Module — The integrated capacitor eliminates the need for external capacitor modules, saving considerable chassis space and simplifying your RC car's electrical layout without compromising performance.
• High-Output BEC with Selectable Voltage — The built-in Battery Elimination Circuit supports a maximum continuous output current of 8 amps and allows you to select either 6 volts or 7.4 volts to power high-torque servos, ensuring consistent power delivery to modern competition servo equipment.
• Comprehensive Data Logging — Built-in data recording captures critical operating information including minimum voltage, maximum ESC temperature, maximum current draw, maximum motor temperature and maximum RPM, allowing detailed analysis of your vehicle's performance.
• Wireless Data Analysis via Bluetooth — When connected to the optional OTA Bluetooth module and HW Link mobile application, you can view real-time data including throttle position, voltage, current, temperature and speed, with effective wireless range up to 5 metres in open field conditions.
• Firmware Upgrade Support — This ESC supports firmware updates through compatible programming equipment, ensuring you always have access to the latest performance optimisations and features released by Hobbywing.
• Multiple Protection Circuits — Overload protection, battery low-voltage cut-off, over-temperature protection, fail-safe throttle signal loss protection and motor lock-up protection combine to keep your ESC and motor safe under all racing conditions.

Technical Performance

The XERUN XR10 JUSTOCK G3S is engineered to the exacting standards required for competitive RC racing. This brushless ESC features a continuous current rating of 60 amps with a peak capacity of 380 amps, providing the instantaneous power delivery necessary for responsive acceleration whilst maintaining thermal stability during extended racing sessions. The unit is designed exclusively for 2S LiPo battery packs, operating reliably across the 5-7.4 volt range with precision voltage regulation. The compact dimensions of 40.9 by 33.9 by 32.1 millimetres and lightweight design at just 75.4 grammes including wiring make this speed controller ideal for tight engine bay installations in modern 1/10th and 1/12th scale racing vehicles.

The ESC incorporates sensored brushless motor compatibility with support for motors rated at 3650 KV or higher and 10.5 turns or greater, covering the full range of competition-specification motors commonly used in UK racing clubs and championships. Input connections feature 14 AWG gauge black and red wires measuring 200 millimetres in length, whilst output connections similarly utilise 14 AWG black wires for reliable power delivery to the motor. The 25 by 25 by 10 millimetre framed cooling fan ensures the ESC maintains optimal operating temperature even during intense racing, with the intelligent thermal management system preventing unnecessary fan operation during lower-demand periods. All programming and configuration is managed through either the provided SET button on the ESC itself, the optional Hobbywing LCD Program Box Pro, or the OTA wireless programmer module, providing flexibility in how you customise the ESC to meet specific competition requirements.

What's in the Box

• Hobbywing XERUN XR10 JUSTOCK G3S Brushless ESC
• Black 14AWG input wire (200mm)
• Red 14AWG input wire (200mm)
• Three black 14AWG output wires (200mm)

What You Need to Complete

• 2S LiPo Battery Pack (7.4 volts)
• Brushless Motor (10.5T or higher, 3650 KV or higher, sensored type)
• RC Car or Touring Vehicle (1/10th or 1/12th scale)
• Radio Control Receiver and Transmitter
• Servo for steering control
• Battery Charger compatible with LiPo batteries
• Motor Connectors (if not pre-soldered — available connector options include Deans, XT-60, 4mm and 5mm bullet connectors)
• Motor-side connector wires (3.5mm bullet connectors are commonly supplied with motors)

Frequently Asked Questions

• Is the Hobbywing XR10 JUSTOCK G3S suitable for competitive racing in the UK? — Yes, this ESC is specifically designed for zero-timing specification racing and is suitable for 1/10th and 1/12th scale on-road and off-road competition venues across the UK. However, it is not BRCA legal for 2024 Nationals in the 17.5T control or FWD class; for those categories you should consider the HW30112003, HW38020321, or HW30408011 alternatives.
• What battery does the XR10 JUSTOCK G3S require? — This ESC is designed exclusively for 2S LiPo battery packs, delivering 7.4 volts nominal output. Always ensure your LiPo battery is in good condition and properly balanced before use, and follow safe charging procedures with a dedicated LiPo charger.
• Can I program this ESC without purchasing additional equipment? — Yes, the ESC can be programmed using the SET button located directly on the unit itself. However, for more detailed configuration and access to advanced features, you may want to purchase the optional Hobbywing LCD Program Box Pro or OTA Programmer module.
• How does the intelligent fan system work and why is it important? — The ESC monitors its own operating temperature, and the cooling fan only activates when temperatures reach a preset threshold. This intelligent operation reduces noise pollution during practice sessions, conserves battery power, and ensures the ESC remains within the optimal temperature window for consistent performance throughout your racing session.
• What is the maximum RPM limit and can I adjust it for different races? — The ESC supports 79 different RPM limit selections ranging from 10,000 to 88,000 RPM, allowing you to meet the specific requirements of virtually every racing format and competition rule set worldwide. RPM limits can be adjusted quickly using your programming equipment.
• Does this ESC include waterproofing? — No, the XR10 JUSTOCK G3S is not waterproof and should not be exposed to water, mud or moisture. It is suitable for dry on-road racing and indoor venues but is not recommended for water fording or mud racing applications.
• What data recording features are available? — The ESC has built-in data logging of extreme values such as minimum voltage, maximum ESC temperature, maximum current draw, maximum motor temperature and maximum RPM. When connected to the optional OTA Bluetooth module, you also gain access to real-time data streaming and historical graph recording of all operating parameters via the HW Link mobile application.
• How much power does the BEC (Battery Elimination Circuit) provide? — The built-in BEC can supply up to 8 amps of continuous current at either 6 volts or 7.4 volts, sufficient to power high-torque competition servos. This eliminates the need for a separate battery to power your steering servo, simplifying your RC car's electrical system.
• What motor compatibility does this ESC require? — This ESC is compatible with sensored brushless motors rated at 10.5 turns or higher and 3650 KV or higher specifications. It supports both SL (Hobbywing sensored) and SD (sensored compatible) brushless motor types commonly found in competition racing packages.
• Can I use this ESC in off-road racing as well as on-road? — Yes, the XR10 JUSTOCK G3S is suitable for both 1/10th and 1/12th scale on-road and off-road zero-timing competition racing, making it a versatile choice for competitors who race in multiple formats.

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 XERUN XR10 JUSTOCK G3S BRUSHLESS SPEED CONTROL HW30112005 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.