Yokomo RP-056A Racing Performer Rotor #56 M3 D12.5xd5.00 橫崛  [RP-056A]

That's an optional rotor for rushing Performer M3 show machines enabling you to adjust the vitality feeling according to competition laws. With a magnet outside diameter of 12.5mm and interior diameter of 5.00mm, it creates use of a high-power magnet that achieves overwhelming acceleration and top cost, proclaiming to offer you an advantage in occasions.
although magnetic force is lost considering high conditions, you will charge the engine energy by changing the rotor! You will regain your initial power and feeling.