X4 Aluminum Flex Chassis works for some carpeting tracks, and high traction asphalt tracks. The X4 framework is made to work alongside the X4 suspension system system system hands, engine mount, T-brace and features holes for centering pins the bulkheads, front shock tower, and straight back human body mounts. The 2.0mm dense aluminum flex framework is CNC-machined from premium Swiss 7075 T6 aluminum, then black colored colored colored coated and laser etched. The ultra-narrow framework is 84mm wide and features unique cut outs offering the framework flex faculties worth a variety of the traction quantities. The beds base of the framework is shaped to reduce contact betwixt your framework as well as the ground while taking a look at enhance cornering speed.