Brushless DC-Servomotors 4 Pole Technology – FAULHABER BX4
Surpass Hobby Waterproof 2838 Series 4 Pole Brushless Motor 35A 2 3S Lipo Speed Controller ESC For 1:14 1:16 RC Racing Car Buggy|Parts & Accessories| - AliExpress
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Volta 4 Pole Drag Motors (Levels 1-4 available) #880015 – R1 Brushless Motor Lab, LLC.
Reedy 540-SL4 Sensorless 4-Pole Brushless Motor (3300kV) ASC907