12mm diameter in runner motors 3200 to11000 Kvs available

The 12mm Proton series motors are the new small 12mm motors for small planes and helicopters and cars. These feature cooling holes in both the front and back cases for more cooling to allow harder running. They are available with both 1.5mm or 2.0mm shafts. Be sure to select the size you need when ordering! The front has 0-80 mounting holes on a 8.5mm circle. MSRP is $39.99. Available from dealers or from our web store.Click here for more info and specs

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