This is an ideal powerhouse motor for anyone using a Micro Heli with a brushed motor who does not want the hassle and expanse of migrating to a brushless motor. This awesome upgrade is a quick swap with your existing 300 - 370 brushed canned motor. Use the same wiring and same connector. Simply hook up the + and - and move the pinion over and you are done. And talk about power, coupled with a Lithium pack this motor will make your Heli go ballistic. This is a powerful 42,000 RPM, 21 Turns full ball bearing raced motor. Just what the Doctor ordered, for your Heli that is.