MMM's on the way, now what Nue to occompany it?

[TexasSP]

From what most experience, the 35k to 40k rpm's is generally seen to be most efficient for our uses.

[MetalMan]

35-40k is most efficient for the motor (typically), but at lower RPMs they seem to run cooler. For example, many people including myself have used the Neu 1512 2.5D (2050 kv) on 4s Lipo (~29,000 top RPM) with excellent results. I do run other setups at up to 40K RPM, though, and those work equally well.

[suicideneil]

The calculator doesnt take into account motor choice and power output- the user must decide that first. You use the calculator purely to determine your gearing with your chosen motor to reach a realistic desired speed. You just need to know which motor and what voltage before hand...