This compact brushless motor has been designed with 250 sized drones and smaller in mind and is an ideal balance of quality, performance and price.
Lightweight, tough and compact, the motor is ideally suited to 4" props, 2~4 cell Lipo batteries to give up to 700g of thrust (2.8kg on a quad!) which is definitely not to be sneezed at!
The motor is supplied with mounting bolts and a locking prop nut for safety.
Perfect for FPV racers!
Voltage: 2~4s LiPoly (7.4~14.8v)
Max Current: 21A
Suggested prop: 4045
Thrust: 700g (4045 prop/4s)
Efficiency: <2.9 g/W
Shaft: M5 CCW
Motor Mount Holes: M3 x 16/19mm
Dimensions: 27.9 × 17.5mm
I only tried this motor on a 3s setup because that's what I intend to use it for my parkjet mk2. With a Bullnose 4.0x4.5x3 blade, amp draw is around 16 at full throttle. Should give about 450g of thrust. With a 4.0x4.5 bullnose 2 blade, it's around 13 amps draw at full throttle. With a regular 4.0x4.5 non-bullnose 2 blade, only draws 7 amps at full throttle. This looks like a racerstar motor but it's not the same performance, if you believe the racerstar chart. The performance chart you get from racerstar and the uploaded file here cannot be used to determine the motor's performance. The uploaded chart on 3s performance on a 4045 is not correct unless it's a bullnose 3 blade. It should be a good parkjet replacement motor provided you run it on 3s and bullnose 4045 x 3 blade. Should not draw over 16 amps so a 20amp esc on 3s is all that you need for that kind of setup. Does get hot but not to the point of untouchable with a 3s lipo and 4045x3 bullnose prop at full throttle.