Stock Class Electric Motor & ESC Combo. The Hobbywing XR10 Stock Spec G2 Sensored Brushless Motor Combo is engineered to deliver peak performance in 13.5 stock class racing. This lightweight combo features the optimized V10 G4 Competition Stock Brushless Motor, which offers maximum torque and increased power with lower internal resistance, ensuring efficient and cooler operation. This combo is designed to maximize your racing potential with unmatched performance and reliability. The OTA programmer allows for real-time data recording, enabling you to monitor throttle, voltage, current, temperature, motor RPM, and more. This data can be viewed in real time and recorded using HW Link for easy data analysis. The system includes multiple protections such as low-voltage cutoff, ESC and motor thermal protection, fail-safe (throttle signal loss protection), and reverse polarity protection. The Hobbywing Xerun V10 G4 Competition Stock Brushless Motor has been optimized to deliver maximum torque and increased power. With lower internal resistance, it runs more efficiently and cooler than the G3R motors. To enhance performance, the motor features a fully exposed stator core for improved airflow. Additionally, the high-precision end bell plate ensures consistency and structural stability. Dual sensor ports provide flexibility for various wiring setups. The Hobbywing Xerun XR10 Stock Spec G2 1/10 Sensored Brushless ESC is designed for 1/10 Touring Cars and 1/10 F1 Stock classes. The ESC includes adjustable throttle and brake curves, an upgraded 5A BEC, and independently adjustable drag brake frequency. It offers dual firmware modes (blinky/stock and non-blinky/boost) and real-time data logging for ESC/motor temperature and motor RPM. This ESC enhances performance and reliability for racers and drifters alike. Optimized for more power and torque. Lower internal resistance allows for increased efficiency and cooler running temperatures. Fully exposed stator core for increased cooling effect. High-precision end bell plate to improve consistency. Significantly lower temps under the same load. Small footprint with 14.3% Lower center of gravity design. Dual firmware blinky/stock and non-blinky/boost to suit different competition requirements. (1) Xerun XR10 Stock Spec G2 ESC. (1) Xerun V10 G4 Brushless Motor. 1:10 Stock Racing. 1-2S (3.7-7.4V) LiPo (Only).