Molded-composite back upright features integrated 0° of outboard toe to enhance traction and avoid suspension geometry alterations in serious crashes. Features two roll center roles on top of the back upright. Accommodates small but robust 5x10 ball-bearings for minimized unsprung weight.
tricky rigidity (labeled H) specifically optimized for foam-tire racing.
Use on both left and right sides of this car. Could be additionally employed for rubber tires.
