HOBBYWING XERUN 3660SD D5.004300KV G2 MOTOR (BLACK)The first 4 pole motor with a built in chip which helps ESC identify it's a HOBBYWING motor (only when pairing it with the XeRun XR8 series of ESCs) and the XR8 ESC create a power system which is able to work in the "sensored" mode(at all times) and provide users with the better performance and smoother control. Note: this motor is compatible with other ESCs but unable to work in the "sensored" mode at all times. The Turbo Timing which is widely used