Molded-composite left straight back upright features included 1° of outboard toe-in to enhance the rotation from the car in corners preventing suspension system system system geometry alterations in severe crashes. Features two roll center jobs ahead in regards to the back upright. Accommodates little but robust 5x10 ball-bearings for minimized unsprung fat.
rough rigidity (labeled H) specially optimized for foam-tire competition.
Use with matching right-side straight back upright 303353. May be also ideal for plastic tires.