This new T-REX 550E especially equipped with power upgrade 730MX(850KV) motor, in a stunning red scheme design. This new power upgrade provides more torque and efficiency perfectly matched to the new 3K carbon side frames. New 530 3G rotor blades bring you stability, agility and overall performance. The included DS615 high performance cyclic servos provide quick response and high torque. Also included with the TREX 550E PRO DFC is the Castle Talon 90A brushless ESC.