Molded-composite remaining rear upright features built-in 1° of outboard toe-in to boost the rotation of this car in corners and prevent suspension system geometry changes in severe crashes. Features two roll center jobs on the top of the back upright. Accommodates small but robust 5x10 ball-bearings for minimized unsprung weight.
moderate rigidity (labeled M) specifically optimized for rubber-tire racing.
Use with matching right-side rear upright 303351. Could be additionally useful for foam tires.
