Castle Creations Motor Sensor Inrunner 4-Pole 1410-2400KV 5mm shaft - CC060-0067-00Castle 1415 1Y Sensored Motor 2400KV 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: 3S Maximum Input Voltage: 4S Sensored Capable : Yes WHY