Original framework with smaller and longer wheelbase integrated in one framework. There are two main different mounting roles for center and rear diff construction which allows to choose between a shorter and longer chassis alternative. The reduced chassis setting makes the vehicle to rotate better in corners and it is suitable for high traction songs. The longer chassis setting makes the vehicle more stable and it is recommended for low traction songs or bumpy Astro songs. The thicker and particularly milled-out chassis had been redesigned for XB420 to improve cornering rate and overall security. CNC-machined chassis produced from 2.5mm top-quality Swiss 7075 T6 aluminum, strategically machined making it since light as you possibly can without impacting power or rigidity and to achieve the required flex characteristics. Black coated.