Smooth running, looks well built. Magnets on mine are glued down well. The extra shafts do not fit bearings as mentioned in other reviews.
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Does someone have the numbers for this motor ? The specks HK gives appear to be wrong. It says Load RPM: 37040 and only 560g thrust ? the 2815 4000kv has only 36360 load rpm yet says 620g thrust? Something wrong here . This motor likely has more thrust then it says, and also draws more amps, but how much?
If HK would send me one of each of the 4 Turnigy 4000kv motors for free, I'll buy one of each of the 4 to make 4 pairs and I would do a mega review for each of them.....