Hobbywing Xerun AXE550 R2 3300kv FOC Rock Crawler Brushless Electric Combo

FOC (Field-oriented Control) for Super Linearity & High Torque & Extreme Slience

New sensor technology has changed the feel, performance, and overall tune-ability of the new Axe ESC and Motor in ways some have never experienced. Field-oriented Control is the name of this new tech, and is something all new to the scale trail, rock racing, and rc world in-general. This new style of sensor allows extremely accurate control and sensing of the motor while maintaining extreme performance and reliability. The motor and ESC are able to match the RPM of the motor to your throttle position under all driving conditions.