Originally Posted by Roelof

Voltage is also determing the max RPM. That motor says 245kv which means 245 rpm per volt, at 12v that will be arround 2900rpm, at 24v arround 5800rpm.

Yes, you can think of a 3 phase motor but connecting it to a 50Hz 3 phase transformer will only create 50rpm.... You need a brushless ESC and a servo tester to make it work and control the rpm, these systems require a DV voltage.