The ultra-tiny XPBS™ rear upright made from super-tough high-tech composite material. The upright was designed to have the smallest design with minimal weight, yet be strong enough to survive rigorous impacts. Features 2 lower roll center positions. Fits XB8.
The smart design of the rear uprights allows for the mounting of optional weights. To increase the stability of the car, optional brass weights can be mounted directly under the rear uprights to further lower the CG. Easy & smart… totally XRAY.