The RDX Carbon Reinforced Brace Rear Shock Tower is incorporated with a resin stay, which is used to attach the body post, greatly improves the stability of the stay. This helps to reduce the sagging of the post and increase body retention. At the same time, the method of attaching the shock has been changed to a traditional style that is easy to adjust the front and back. The widest setting is also expanded with the mounting holes set in the abundance. Use the included spacer to attach over the resin stays in the kit. (Screws and nuts are not included. )