Molded-composite staying rear upright features essential 1° of outboard toe-in to improve the rotation of this car in corners and give a wide berth to suspension system system geometry alterations in serious crashes. Features two roll center jobs together with the right back upright. Accommodates small but robust 5x10 ball-bearings for minimized unsprung fat.
moderate rigidity (labeled M) specially optimized for rubber-tire battle.
Use with matching right-side straight back upright 303351. Might be in addition helpful for foam tires.
