XB2 Aluminum one-piece chassis with built-in kick-up optimizes fat stability and flex featuring its shape and framework fat alternatives, fits the most up-to-date battery power types, and improves handling in all different traction conditions. The XB2 Aluminum Chassis 1-Piece generate optimum traction and it's also appropriate low traction conditions. CNC-machined from top-quality Swiss 2.5mm 7075 T6 aluminum.