The Assault series heli brushless outrunner motors are an excellent upgrade for your helicopter. Built with high quality components, tight windings and genuine NMB ball bearings, these motors provide excellent performance and efficiency at a price that cant be beat!

These motors are a perfect fit for just about any 500 class helicopter including all of the HK500 helicopters.

Specs:
Operating Voltage: 18.5~22.2V (5~6S lipoly)
RPM: 1600kv
Max Current: 80A
Max Power: 1700W
Idle Current: 3.2A
Resistance: 0.0183ohms
Shaft: 5mm
Connector: 4mm bullet
Bolt Hole Spacing: 25mm
Weight: 230g