Im not too sure. I bought a cheap generic brand Brushless outrunner motor and speed control, but it must be pretty strong because i can hover my pitts(34 in. Wingspan) at 1/2 throttle. I have the stock art-tech raciever and radio and i have 4 micro servos. I forgot to mention, i dont want something 3d. I mainly want a sport flyer that san do loops and rolls and inverted flight. I dont really like anything else. I just want a parkflier. Thanks