the esc is sensor-less to my knowledge so will probably stick with a sensorless motor but the only choice is which one, im thinking 9t but since i now know the ezruns are just 380 ones in 540 bodies, im intrested to know what is actually a 580 motor that would be compatable with my ezrun 60a esc? for instance is this an actual 540?;
http://www.apexmodels.com/gbu0-prodshow/ET0330.html
thanks