It will be excellent on the Ultimate. With 3s it will go straight up. They are nice motors, very quiet and smooth. I have one and my brother has three. I have ordered from them but it's been a while. Look here too. I order all the time and they are fast. Very good place. Look for the Himax combo deal in brusless motors. $100 for CC Phoenix 10 and 0980 outrunner motor, $113 if you want a 25 esc.