Reedy introduced a new s-plus competition class brushless motor (540) after months of research and development . The biggest characteristic of this kind of motor is shortened the length of the coil, sharply reduced the internal resistance, and also reduced weight at the same time. It reduced 30 grams in total weight, adding the CNC lightweight enclosure. It means that the frame of center of gravity will be further reduced, manipulation and chassis twist are promoted. The R.O.A.R. match requirements can be adjusted to provide 21.5, 17.5 and 13.5T for player/driver selection.