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Cobra CM 2204 / 20 Multirotor Motor 2850 KV

Cobra CM 2204 / 20 Multirotor Motor 2850 KV

Your Price: $20.99
In Stock.
Part Number:Cm2204/20
Cobra Has done it again Bringing you Beast motors into tiny sizes. These 2204 sized motors come angry and ready to rip the sky to shreds. Pair it with your favorite props and turn your multirotor into a rocket ship ready to take on race day. Made from the highest quality components these motors will out last the competition leaving others in your prop wash. 

The Cobra CM-2204 series motors have a 3.0mm motor shaft for extra strength, as well as oversize ball bearings to support the shaft and provide a long life. The stators are made with 0.20mm laminations for maximum efficiency and minimum Eddy Current losses. Since these motors are typically soldered directly to the speed controller to save weight, the 2204 motors come without bullet connectors and feature extended pre-tinned motor leads that are 4-1/2 inches (110mm) long. These motors also have 3mm threaded holes in a 16x19mm pattern on the back plate for easy installation on your model.

The newest version of the CM-2204 series motors feature an integrated 5mm threaded motor shaft which eliminates the chance of having a prop adapter spin off in flight. The included prop washer and nylon insert prop nut provides a solid attachment for your propellers that will not loosen up and slip during use.

Included with every Cobra CM-2204 Series Motor is a complete accessory package which contains the following items:

● Four M3x5mm Motor Mount Screws
● Four M3 Flat Washers
● Machined Aluminum Prop Washer
● Locking Prop Nut with Nylon Insert


Click here for the Cobra CM-2204-2850 Propeller Data Chart


Cobra CM-2204/20 Motor Specifications
 Stator Diameter 22.0 mm (0.866 in)
 Stator Thickness 4.0 mm (0.157 in)
 Number of Stator Slots 12
 Number of Magnet Poles 14
 Motor Wind 20 Turn Delta
 Motor Kv Value 2850 RPM per Volt
 No Load Current (Io) 0.993 Amps @ 10 Volts
 Motor Resistance (Rm) per Phase 0.078 Ohms
 Motor Resistance (Rm) Phase to Phase 0.052 Ohms
 Maximum Continuous Current 24 Amps
 Max Continuous Power (3-cell Li-Po) 270 Watts
 Max Continuous Power (4-cell Li-Po) 355 Watts
 Motor Weight 24.6 grams (0.87 oz.)
 Outside Diameter 27.0 mm (1.063 in.)
 Motor Shaft Diameter 3.00 mm (0.118 in.)
 Prop Shaft Diameter 5.00 mm (0.197 in.)
 Motor Body Length 14.2 mm (0.559 in.)
 Overall Shaft Length 32.5 mm (1.146 in.)
 Motor Timing 5-10 degrees
 PWM Frequency 8 KHz



Motor Performance Graphs

The following downloadable PDF files show the performance data curves of the Cobra CM-2204-2850 motor, over its entire throttle range, with a variety of propellers. These graphs can be downloaded and printed to use as a reference for calculating power requirements at specific thrust levels, and enable the user to calculate flight times, current draw and other motor parameters.


3-Cell Li-Po Power

Cobra CM-2204-2850 Performance Data with HQ 5x4 prop on 3S Li-Po

Cobra CM-2204-2850 Performance Data with HQ 5x4.5 prop on 3S Li-Po

Cobra CM-2204-2850 Performance Data with HQ 6x3 prop on 3S Li-Po


4-Cell Li-Po Power

Cobra CM-2204-2850 Performance Data with HQ 4x4 prop on 4S Li-Po

Cobra CM-2204-2850 Performance Data with HQ 5x3 prop on 4S Li-Po


Performance Graph Instructions

This downloadable PDF file shows the step by step process to use for interpreting the data shown in the Motor Performance Graphs. By following this procedure, you can determine how to select a proper motor for a Multirotor aircraft, as well as calculate required power levels, determine overall prop efficiency and calculate expected flight times based on the battery size that is used. This document can be printed out and saved as a valuable reference tool to keep in your workshop for future use as well.

Motor Performance Graph Instructions



Front View



Items Included in Hardware Package 




Cobra Motor Packaging



*Please observe the motor specifications properly. This will determine the correct size ESC required for proper operation*

*Motors do not come with replacement parts!

*Motors that have failed\burned running on an incorrect ESC size will void warranty*

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