Castle Creations Motor Sensor Inrunner 4-Pole 1410-3800KV 5mm shaft - CC060-0066-00Castle 1410 1Y Sensored Motor 3800KV 5 mm Shaft You asked. We listened. For more than a decade Castle has been providing award winning brushless sensorless motors to R C enthusiasts worldwide. In response to overwhelming requests by our customers, we have brought technological advancements together that will deliver unprecedented performance in our new SENSORED motor Line. Minimum Input Voltage : 2S Maximum Input Voltage : 3S Sensored Capable : Yes