Hacker A30-12XL V4 Brushless Motor 15716108 550W - 681 wattThe Hacker A30 series motors are designed for Larger Parkflyers, 3D Aerobatic, and Scale models from 24oz to 60oz and utliize 2 to 4 series LiPoly batteries. The 14 pole outrunner type design creates MASSIVE TORQUE, therefore larger direct drive props can be used without the need for a gearbox. These motors feature oversized bearings, curved neo magnets, and high efficiency stator design. The A30 motors produce the most power at lower current