Was it the curved shape or the internal damping ring to protect the bearing, or was it the higher quality NSK bearings mated with a higher grade titanium alloy shaft? We've been copied and compared all these years The smooth, reliable and powerful XING motors were improved and we have reached an even higher standard in our factory, as well as better performance than ever. New center slotted N52H curved arc nets were introduced to reduce engine response time. ​​​​​​ XING2 motors offer faster response to translate your PID loop faster and get the lockdown feel you've always been looking for. ​​​​​​​ Due to the high quality materials used and the durable bell and shaft seal, we have been able to minimize magnetic air gap and stator lamination. The smaller the air gap, the lower the reluctance and the higher the magnetic flux (which is the magnetic analog of the current) which will cause higher efficiency and higher power. The new ones for the XIN2 X1404 MOTOR are designed for the construction of ultra-light sticks, which the micro drone changes FPV nowadays. Super light 3 "is built as much nicer as we have the SucceX whoop all-in-one (AIO) style with the new mondadiflight style frame that the ultralight microdrone can build. Item Name:XING2 1404 Ultralight Brushless Motor

Product Parameters:
Model: XING2 1404
KV：3800KV / 4600KV

3800KV 
Configu-ration: 9N12P
Stator diameter: 14mm
Stator length: 4mm
Shaft diameter: 1.5mm
Motor Dimension: φ19.9*13.5mm
Weight: 9.1g/pc
Idle current (10) @5V(A): ≤0.47
No. of cells (Lipo): 3~4S
Max continuous power (W) 60S: 253.4W
Internal resistance: 0.220mΩ
Max current(60S): 15.84A

4600KV 
Configu-ration: 9N12P
Stator diameter: 14mm
Stator length: 4mm
Shaft diameter: 1.5mm
Motor Dimension: φ19.9*13.5mm
Weight: 9.1g/pc
Idle current (10) @5V(A): ≤0.72
No. of cells (Lipo): 3~4S
Max continuous power (W) 60S: 287.8W
Internal resistance: 0.159mΩ
Max current(60S): 17.99A

Features:
In early 2018 we started putting O-rings on our bearings between the motor bell and the stator. This works like a shock absorber if your bell or shaft has crashed and keeps the bearing gap tight to reduce all those high rpms induced vibrations. It can also reduce the axial impact force enough to keep the bearings smooth and quiet. All of our experience, high quality 7075 bells, round ring bearing protection and all the other features you have seen in your original XING series are still built into a new shape and design.

Package Included:
XING2 1404 3800kV Brushless Motor x 1
M2x7 mounting screws x 8 or
XING2 1404 3800kV Brushless Motor x 4
M2x7 mounting screws x 32 or
XING2 1404 4600kV Brushless Motor x 1
M2x7 mounting screws x 8 or
XING2 1404 4600kV Brushless Motor x 4
M2x7 mounting screws x 32