The aluminum bulkheads are designed to join the reduced chassis plate and battery tray together in a durable, efficient, and lightweight design. The bulkheads provide optimal stiffness, flex and handling traits, even when making use of harder foam tires. The bulkheads are CNC-machined from premium Swiss 7075 T6 aluminum to provide the lightest & strongest framework the car. The bulkheads feature a striking titanium color.