Furitek Traxxas TRX-4M Rampart Monster Truck Frame Conversion Kit. Constructed from extremely lightweight and rigid carbon fiber with a Multitude of shock and link mounting positions giving you the ability to tune the suspension to your liking, this optional super lightweight at only 8.9g to keep the CG (Center of Gravity) low and increase stability frame is intended for the TRX-4M allow you to convert your micro crawler to a monster truck and start crushing cars while you party in the pit!