Molded-composite right backside upright features integrated 1° of outboard toe-in to boost the rotation of this car in corners and stop suspension system geometry changes in severe crashes. Features two roll center roles at the top associated with the back upright. Accommodates tiny but robust 5x10 ball-bearings for minimized unsprung fat.
moderate rigidity (labeled M) particularly optimized for rubber-tire race.
utilize with matching left-side rear upright 303361. Is additionally used for foam tires.