Hobbywing 30401749 - XeRun V10 G4R.5T Stock MotorNew stator, new rotor & new sensor assembly improves the GR4R spec motors overall performance and power dramatically.Excellent performance, specially designed for 1/10 STOCK racing.The innovative outer diameter structure of fully exposed stator core maximizes the heat dissipation area and the rear end of the motor is a big opening structure to further improve the heat dissipation effect.Dual sensor interface design to meet various wiring/layout requirements.The special copper bar is customized and the spacing of copper bar is widened, which greatly facilitates the operation of soldering wire.The built-in high precision Hall sensor combined with the high precision and balanced rotor guarantee outstanding linearity of the motor.The use of high-performance stator core, 220°C high-temperature-resistant enameled wire, high precision and high strength bearings, and copper solder tabs with super current endurance guarantees outstanding performa