To my first review it’s fair to beggin with the very first motor that I use in my first DIY drone, RCX ZMR 1804 2400KV. I set it in f250 glass fiber quad. In fist lookup RCX are small and light motors but powerfull anyway. Exactly 13.4g, so perfect to set and don’t be worried about the weight. Furthermore, it’s diameter only 23mm, 5mm in axis. Theoretically, provide 2400KV and may set with 2S (7.4V) or 3S (11.1V) batteries so discard mounting with 4S batteries, are not allowed, looking in datasheets. Package include M2 screws to fix the motors in the frame. Also, one nut per motor to set the propellers. Could be found in CW (Clock Wise) and CCW (Counter Clock Wise) but, to be honest, I have never found CW model. It’s could a problem using nut provided in the package, because tend to unscrew. Also, screws are quite short and should be re-screw almost before every flight. Both issues could be easily solved. Setting few larger M2 screws, cheap and common, let you ...