Most of the specs are way on the safe side. An example I have a Emax 2212 1400kv motor, even stamped on the outside 8" prop on 3S , I run them in my combat planes 35A or 40A esc , 10X5E APC prop and 2200 3S battery. Haven't burnt one yet and I am very seldom under 50% throttle . The motors come in a little warm but they keep on ticking
. Do like I said, take it up for a spin, couple little bursts of wot and bring it in and check the temp.