Instructions:

The M4090 motor feature unigue design to create the advantages of heat release and low temperature variant.

The patented assemble the metal fan.Make over 80% heat can be take away while operation.

The M4090 motor armature had a special balance adjust to improve the series shaking problems that most of existing motors have.

Light weight, high torgue,high efficiency, low temperature variant,stable, smooth and quiet.

High speed CNC precise cutting.

Japan made high-speed ball bearings,powerful magnetic outrunner rotor.

60000RPM Hight Speed Dynamitic Motor and Fan balance adjustment .

Specification:

KV: 900

Input Voltage: 12S Cells Li-Po

Max contiuous Current: 78A

Max. Thrust: 5.05kg / Cont.Thrust: 4.8kg

Dimension: 40mm

Length: 68.5mm

Diameter of Shaft:5.0mm Hardened Steel

Weight: 255g (Approx.)

Running direction:Counter-clockwise

Accessories:

M4090 Fan Brushless Motor 900KV  X1