Molded-composite back upright features built-in 0° of outboard toe to enhance traction and avoid suspension system geometry alterations in severe crashes. Features two roll center jobs on the top associated with the rear upright. Accommodates small but robust 5x10 ball-bearings for minimized unsprung fat.
tricky rigidity (labeled H) specifically optimized for foam-tire race.
usage on both left and right sides of this automobile. Can be additionally used for plastic tires.