EMAX ECO II Series 2207 1700Kv Motor

+ They're cheap

+ They're available all over the world

+ They're power is still on today's average of modern 2207

+ They're not overweight

- They bend easier than I expected it. I never broke a 5" arm, but bent several of those motors. Or pin-landing-force-separated the two part bell.

But they're still cheap.