RPM Wing Mounts solve the key breakage issues reported to us. Primarily, the front cross brace holes were cracking. Our simple solution was to eliminate this hole in favor of a flat plane of solid RPM engineering grade nylons. We then swept the entire mount on a curve to help add some impact flexibility when it needs it most – during a crash. When running normally, the massive amount of material we used keeps the wing locked in place, providing excellent, stable down force on the rear of the vehicle.