The Serpent Viper 990 EVO is the successor of the successful 990. It features new “flex shock mounts”, offering extra flex adjustment as well as having the possibility to fine-tune the shock positions. The EVO also features a new bumper which is lighter, offers more body support and is stiffer as well! It also improves aero due to a better fit to the bodyshell. Also part of the upgrade is a new tank as well as a new topdeck. On top of that we improved reliability.