X1 chassis CNC-machined from 2mm premium Swiss 7075 T6 aluminum not to mention black colored colored coated. Designed & developed to improve traction, stability, and steering in certain conditions. The aluminum chassis provides better control and makes the automobile better to drive. Ideal for high and very-high traction songs. 24mm narrower than previous framework variations, eliminating experience of the track in corners while rolling, and offering improved cornering rate. Includes a slot for a composite battery pack backstop enabling 5mm battery position adjustment with the many regularly used cross-chassis alignment configuration. To be used with #371148 aluminum rear pod plate.