X4 Aluminum Flex Chassis works for a few carpeting tracks, and high traction asphalt songs. The X4 chassis was created to work with the X4 suspension system system hands, motor mount, T-brace and features holes for centering pins the bulkheads, front shock tower, and straight back human body mounts. The 2.0mm thick aluminum flex framework is CNC-machined from premium Swiss 7075 T6 aluminum, then black colored colored coated and laser etched. The ultra-narrow framework is 84mm wide and features unique cut outs that provide the framework flex traits worthy of a multitude of the traction quantities. The base of the framework is shaped to lessen contact betwixt your framework and also the ground while looking at enhance cornering speed.