At Fast Forward Racecars we custom bend all of our roll cages and chassis in house from 4130-chrome moly (Unless Customer Specified Mild Steel). We do not use pre-manufactured cages or chassis, because of their universal fit, and they do not meet our strict standards of chassis design. Our roll cages and chassis’s are design for a tight fit within the body of each race car we build. This gives the driver more room for comfort and safety.