Castle Creations 1410 1Y 4-Pole Sensored Brushless Motor (3800kV)Castle Creations 1410 Sensored 4 Pole Brushless Motors combine rotor position sensor technology with an improved high power and high efficiency motor design to deliver ultra smooth startup, precise low speed control, predictable power delivery, incredible torque, and lightning fast response. Through the use of Castle's Smart Sense technology, the position of the rotor is always known by the ESC. This eliminates the possibility of encountering cogging