The 540-DR Rotor is designed specifically for drag racing, ensuring optimal performance and durability. Measuring 13.5mm in diameter, 5mm in height, and 24.2mm in length, this rotor features a balanced design that is supported by precision ball bearings. This high-strength rotor is crafted especially for the requirements of Reedy Sonic 540-DR Brushless Motors, making it an excellent choice for racers seeking powerful performance in their motors.