4pcs Aokfly RV1407 4200KV Brushless Motor for FPV Racing Quadcopter 130mm-180mm Drone

Looks like a well-constructed motor, I like the colors. they are very linear which I like is well for racing. They come down slightly warm on the new dal cyclone 3 inch props. I'll give you an update after I put them through a torture test on the race course soon

I have purchased 2 sets of these already for a 130mm build and each set failed on the first flight. I was using a 3s 45c 800mah lipo and 20a esc. A motor would stop and the drone would fall and end up bending the shafts of the other motors. So they are definitely weak. And can not handle a 3s let a lone a 4s. Unless I got to bad sets in a row I don't know.

2 out of 4 died in the first flight!45 dollars in the trash!I regret not spending 15 dollars more and get some decent motors..lesson learned.UpdateSo the company was kind enough to contact me. They sent me another set of motor which I installed on a massive droner 3 inch and I can safely say that these motors are really good. I don't know what happened to the first set but I'm assuming it was a bad batch. I ve been flying for a week and they look pretty good. They perform amazing. I'm really interested to try the 1103 series they have.

my only gripe is the shafts are kinda tight, for certain props. Also screws are too short for 3mm or 4mm frame. Other than that, these things are wicked fast!

Greate motors for the price. Excellent customer service.