The 2207 offering from the new budget line of motors sent in by GetFPV for testing.
This motor sits right on the line between mid-Kv and high Kv, testing right at 2570kv. I've classified it as high Kv as the peak current draw and range of viable props fits more into the higher Kv class. The motor puts out some very respectable numbers, but the current draw starts climbing pretty quickly in the last 1/4 of the throttle. The heavier props start pushing towards the 50A mark. The motor certainly has the torque to get them there, but the higher Kv brings the current costs into territory that means the ideal props for this motor will be on the lighter loaded end of the spectrum. Mid-loaded 5" tri-blades, such as the v1s 5043 and 5045, and the Cyclone 5045 are probably going to be the sweet spot in terms of balancing power and current draw, though some pilots will probably want to opt for the more conservative 5040 props. An interesting prop to watch on this motor is the T-motor 5143. It is an ideal loading from a response perspective, but like other props from the Gemfan Flash line (on which this prop is based) it starts losing efficiency in the top 1/4 of the throttle. You can see it move position in the efficiency rankings from keeping pace with other props of similar pitch to jumping way down in efficiency at 100%. Still with careful throttle management they should be an excellent prop even on high Kv motors, and especially in this case where the Kv is fairly conservative for high Kv.