Scorpion have three new optional rotors for the RS-3420 line of electric brushless motors available. First up is the 12.0mm high speed rotor that is designed to improve the maximum RPM produced by the motor while being able to withstand extremely high temperatures. Also new is the 12.3mm all-purpose rotor that offers a good balance of RPM and torque for a linear throttle and brake feeling. Last but not least comes the 12.5mm high torque rotor for maximum power and increased brake and drag brake strength. All rotors are made from high-strength materials and they feature Scorpion’s patented screw-type rotor and cooling fan for lower running temperatures.