The XB8E'21 chassis with both seat pack and stone version configuration. The chassis may be installed for both saddle pack and brick version. Also component locking system for the servo saver articles that ensures the elements will stay guaranteed even during chassis flex in extreme conditions. The chassis is CNC-machined from 3mm high-quality Swiss 7075 T6 aluminum; strategically machined in low-stress areas after which anodized to make it because light as possible without impacting power or rigidity.