The Outrunner Dynamic 3100 KV Motor is a great motor for a great low price. It is perfect for 300 size Helicopters such as the Esky, Blade CP, or all CNC Blade CP Belt conversion kit. The motor is 36mm long and was designed for a brushless ESC and a 3 Cell Lithium 11.1V Pack.

Helicopter Outrunner H8 Brushless Motor and H-40 Brushless Controller combo set. Save some money with this powerful combo pack from Ikarus Helicopters. This motor is the recommended setup by Ikarus for both the ECO-8 and Royal Helis. However this combo pack works well for many Helis in the same size as the ECO-8.

Truly an insane motor for your TREX. The Hacker A20-6XL was developed by Jason Krause specifically for the T-Rex 450. This motor has awesome power and efficiency. It includes a cooling fan and two spare motor shafts! This outrunner motor is perfect on 3S. You will need a 16T or 17T module 0.5 pinion available separately. Hacker recommends the Quark 33A Universal ESC as it was used in the development and testing of this new motor.

The most popular motor for the QJ-EP8 with a 4-cell Lipo pack and 17 or 18T pinion. Requires an EP8 outrunner motor mount (part #QJ-HBP-34-C). For the Century Swift 16, use an 11T pinion (CNMG511) and a 4-cell Lipo pack. FEATURES: Ultra-high power and super-efficient design. Specifically designed for use with Li-Poly batteries. 20,000 U/min max RPM. Operating range: 3-5 LiPo. Operating current: 35A, Peak current 15 sec: 45A. Shaft diameter: 5mm. This motor is also recomended for the Hirobo Lepton RC Heli.