I think that depends also with which voltage you power them, I think also gearing.
I do not know the calculation behind, probably @professor_shartsis can give you some nice graphs for it.
Should be 12S. Higher voltage is more efficient. KV and gearing should max out at the max speed wich should be achieved for best efficiency. Also the best results should have a 1:1 gear ration. But I don’t know if such a low kv is possible at that speeds.
At the moment I am more interested to find a nice motor.
for the same size stator and copper fill the higher kv is more efficient, generally the bigger motor is more efficient, for the same kv the lower resistance motor is more efficient, gearing for the lowest acceptable top speed is most efficient… unless its direct drive (1:1 gearing) then the lower kv is more efficient
I’d love for my motors to start doing my taxes or start paying rent so that it can effectively pay for itself, but one of my motors is being a little slut
No gearing, aiming for 1:1, DD, hub, or something. Just looking for a motor ATM. Speed like I said something between 20-30km/h should be fine. Normal rider weight. 60-100kg. It should be for long distance on street in a light weight build. Maybe 12S1P Samsung 50E or similar.