Originally Posted by snellemin

You forget about speed runners and dragracers. Omit those folks and you omit potential buyers. Bashers, weekend warriors bring in the money, Racers make them known.

Lehner, Hacker, Plettenberg, Tekin, Neu motors, Castle motors do run 50-60K rpm. There would be no point in investing in a 150-160 dollar motor that can't spin 50-60K rpm, when a 120 dollar well known motor does. My dragracing GTP runs a 4080kv Hacker motor on 4s which is around 54000rpm under load and system IR for example.