Authentic XRAY aluminum backside lower suspension system owner the REAR of this rear bulkhead, redesigned to work well with the long suspension arms. Suitable for asphalt tracks with low-to-medium traction. Can be used with 2-piece rear front (RF) aluminum suspension holder #303730. Suspension holders are CNC-machined from premium Swiss 7075 T6 aluminum and now have been designed to give you the lightest and strongest possible help framework for the car. Black anodized. There are two main types of the suspension system holders, each created specifically and chosen to give the required faculties stability, traction, and flex: Front of the FRONT suspension system 1-piece. back associated with FRONT suspension 1-piece for security, an easy task to drive in most conditions but specially under high-traction conditions. front side of BACKSIDE suspension 2-piece for maximum back traction. The holder features a mounting hole for the ARS link. Rear associated with the BACKSIDE suspension system 1-piece to get more steering and better rotation.