The Titan^® 12T 550 modified motor is designed for incredible mod-motor power output with virtually maintenance-free operation, and long-lasting performance. The Titan 12T 550 motor’s integrated cooling fan pulls cool air through the motor to keep temperatures down. A cooler running motor allows faster speeds, longer runtime, and extended motor life. (NOTE: Titan 12T motors are intended for use in single motor and single battery pack applications, up to 8.4 volts. Traxxas does not recommend the use of Titan 12T motors in dual motor vehicles like E-Maxx^®.)