The aluminum bulkheads are manufactured to join the paid off framework meal and battery pack tray together in a durable, effective, and lightweight design. The bulkheads provide optimal tightness, flex and handling characteristics, whether or not making use of harder foam tires. The bulkheads are CNC-machined from premium Swiss 7075 T6 aluminum to present the lightest & strongest framework the auto. The bulkheads work a striking titanium color.