Yokomo RP-061A Racing Performer Rotor #61 M3 D12.2xd7.25  [RP-061A]

This is actually in fact an optional rotor for rushing Performer M3 show engines that allows that you adjust the ability feeling dedicated to competition guidelines. With a magnet outside diameter of 12.2mm and interior diameter of 7.25mm, it creates use of a high-power magnet that achieves overwhelming acceleration and top price, giving you a benefit in activities.
it doesn't matter if the magnetic force is lost considering high conditions, you are going to charge the motor energy by changing the rotor! You can regain your initial energy and feeling.