Motor + ESC Combo HOBBYWING 3665SD-4000KV + EZRUN MAX 10 G2The HOBBYWING 3665 4000 KV motor represents the max range power class in our vehicle. With this motor, speeds of up to 107 km h can be achieved. This motor must always be paired with the HOBBYWING MAX10 G2 controller. Key Features High efficiency: The 3665 4000 KV motor is designed for high efficiency, providing excellent power output while minimising energy consumption and heat generation, resulting in longer runtime and improved overall performance