Medusa Afterburner V2 BL motors

Yes the 50mm will power an E-maxx, very well in fact but I do like my 60mm a bit better. I am now thinking about getting a 70-75mm just to know what each is like.

If you do decide to go with a 50mm get a higher Kv than is normal, and gear down. Let the motor spin and the gears produce the torque.