Yokomo RP-065A Racing Performer Rotor #65 M3 D12.0xd7.25  [RP-065A]

This is an optional rotor for Racing Performer M3 series motors that allows you to adjust the power feeling according to race regulations. With a magnet outer diameter of 12.0mm and inner diameter of 7.25mm, it uses a high-power magnet that achieves overwhelming acceleration and top speed, giving you an advantage in races.
Even if the magnetic force is lost due to high temperatures, you can refresh the motor power by replacing the rotor! It is possible to regain your original power and feeling.