1804 and 1806 motors are good for 5" Prop and it may cause overheat if you run it with 6" prop. So you need this H2206.
Perfect balanced motor bell
High quality NMB Bearings
Tested with 6045 on 4S with over 1kg of thrust
Quality Motor Best for 250-300 frames
Weight: Approx. 32g (net weight included long AWG cables)
Prop Shaft Diameter: 5mm(no prop adapter is required for most 5mm props)
Clockwise Screw Thread
Stator Diameter: 22mm
Stator Length: 6mm
Shaft Diameter: 3mm
Motor Dimensions: Φ27*18mm
ldle Current: 0.74A @ 10V
Internal Resistance: 0.1Ω
Suitable ESC: 8-20A (depends on the prop you use)
HobbyWing's XRotor works pretty well with H2206 motor so it is recommended especially the XRotor 20A is small in size as small as some 10A-12A ESC.
Since SimonK and BLHeli might shutter during high RPM on small props (eg. 5030). So if you plan to drive the motor hard, please consider to get XRotor 20A or 40A because XRotor was tested at high RPM without any sync issue.
Suitable Battery: 2-4S Li-Po (refer to thrust test table and videos)
1 x RCX H2206-6 1950KV Micro Outrunner Brushless Motor