Max rpm for HV motors?

[BrianG]

I'm guessing it's around 75k? Since the HV is meant for 4s, and the 4.5 is a 5000kv motor, that would be around 74000rpm. The only reason I ask is so that I have the right data in my R/C Calc thingy.

Also, I assume the max rpm figure is the same for the 4.5, 5.5, 6.5, and 7.5? If so, that means the 7.5 could conceivably be used on 6s (with a non-Novak ESC of course).