Hobbywing XeRun V10 G4R ROAR Sensored Brushless Motor

The XeRun V10 G4R is Hobbywing's ROAR-certified sensored brushless motor built specifically for 1/10 and 1/12 Stock racing. With a high-performance stator core, built-in high-precision Hall sensor, and precision-balanced rotor, the V10 G4R delivers the smooth, linear throttle response that competitive racing demands. The fully exposed stator-core design and large rear opening maximize airflow and heat dissipation — keeping temperatures down lap after lap.

Note: Two versions are available — the standard G4 version (IFMAR/EFRA certified) and the G4R version (ROAR certified). This listing is for the ROAR (G4R) version. Please verify your competition rules before ordering.

Key Features

• ROAR Certified – G4R version is on the ROAR certification list for 1/10 and 1/12 Stock class racing
• High-Performance Stator Core – New stator, rotor, and sensor assembly improves overall speed and power output by up to 5% vs the V10 G4 series
• Thermally Conductive Winding Epoxy – ROAR version fills coil caps with thermally conductive epoxy — running approximately 15% cooler at the same input power
• 50% Thicker Copper Windings – Lower internal resistance (~3% lower than G4) and greater heat capacity for sustained high-power output
• Fully Exposed Stator-Core Design – Open core can and all-new rotor maximize airflow for superior cooling (patented rotor heat dissipation design)
• Large Rear Opening – Further improves heat dissipation during intensive race sessions
• Built-in High-Precision Hall Sensor – Precision-balanced rotor ensures linear, smooth throttle response with no cogging
• Dual Sensor Ports – Two sensor interfaces for flexible wiring layouts; unused port protected by included silicone plug
• Widened Copper Bar Spacing – Easier wire soldering for cleaner motor builds
• 220°C High-Temperature Enameled Wire – Up to 40°C higher temperature resistance than competing motors
• Wear-Resistant Silent Gasket – Updated nylon mixed shims with ~2x improved wear resistance
• Easy Maintenance Modular Design – Designed for regular service and cleaning between race days

Motor Specifications

Mechanical Dimensions

Which Turn Should You Choose?

• 13.5T (4100KV) – Highest power output for 1/10 Stock racing — maximum speed on large tracks
• 17.5T (3150KV) – Most popular all-round choice for 1/10 Stock racing — balanced speed and control
• 21.5T (2600KV) – Lower KV for 1/10 and 1/12 Stock class — more torque, better for technical tracks

What's Included

• XeRun V10 G4R motor with standard rotor (PN 30820450)
• Silicone plug for unused sensor port

Optional Accessories

• Optional stronger magnetized rotor (PN 30820407) — for medium/large track Blinky competitions or high-traction tracks
• Recommended ESC: Hobbywing XeRun XR10 G3

Important: This is the ROAR (G4R) version. The standard G4 version is certified for IFMAR/EFRA rules. Verify your competition's specific rules before purchasing. Rotation direction is C.C.W (Counter-Clockwise).