300-size brushless motor with 500-Class power potential! Neodymium magnets, dural aluminum case with integrated heat sink and unique solder posts for easy wiring. The Mini AC 1215 EXTREME is the choice for maximum power to weight for your competition glider.  The EXTREME is delivered with its 6:1 VMGM planetary gearbox already mounted and broken in. High quality grease for future gearbox maintenance is also included for free! . Manufactured from the finest materials using the newest CNC machinery, the motor is two-pole type, and rated for 45,000 rpm! Use either the Jeti or Hacker 18-3P to 40-3P speed controllers.