The XB8'21 framework features a locking system the servo saver articles that guarantees sun and rain can be fully guaranteed also during framework flex in extreme conditions. The gas tank was indeed relocated rearwards for enhanced fat protection. The framework fits both SMOOTH and HARSH composite radio containers without chassis modification. The framework is CNC-machined from 3mm top-quality Swiss 7075 T6 aluminum; strategically machined in low-stress areas and anodized making it since light it is possible to without impacting energy or rigidity.