Your 12mm x 30 x 4000kv Afterburner Motors Source! 
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12mm x 30 x 4000kv Afterburner Motors - Product Image
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12mm x 30 x 4000kv Afterburner Motors

The best 12mm Inrunner ever made. 1.5mm or 2mm shaft. This motor is amazing on 2 or 3 cells and a 3-2, 3-3 or 4x2.5 GWS props. I've always found the 4000kv version of this motor to be more useful across a wider range of props and battery packs. To my knowledge there has never been a finer 12mm motor made than this brand. Now that the shafts are updated to 2mm, they are perfect! Using in a gearbox will require you to drill the gear to press fit on the shaft or obtain a set screw style gear with 2mm bore and the same modulus as the IPD drive (if you use one of those). The vast majority of users apply this motor direct drive.

Choose your shaft size below. 1.5mm for IPS gearbox use, some ducted fans and pusher use. We recommend the stronger 2mm shaft for direct drive tractor use.

WeightRatiosAmpsShaftMax Motor RPMKVResistance No Load Current
15g(.53oz)No Gearbox Included2-61.5mm/2mm100k4000.30Rm .30A

Setup and Performance Chart
# CellsRatioPropAmps/Watts InRPMThrust oz.Pitch Speed MPH
23.5:1 (IPS #2)8-66.3/476,200915
33.5:1 (IPS #2)7-3.56.2/7010,4701235
24.1:1 (IPS #1)9-4.75.5/415,550925
24.1:1 (IPS #1)9-76.8/515,1301034
25.9:1 (IPS #A)9-73.5/264,300729
25.9:1 (IPS #A)10-85.0/383,970930
35.9:1 (IPS #A)8-64.4/506,6201038
35.9:1 (IPS #A)9-55.4/616,3901330
Estimates based on manufacturers provided constants using E-Calc. High Quality 700mah used as trial cell in calculations. Actual performance may vary depending on components used, accuracy of data as provided by manufacturer, quality of ESC, weather and many other variables. Note, static thrust numbers are typically higher than calculated with prop sizes 6" and under.
Out of stock, sorry!

SKU Number: MR-012-030-4000
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