Molded-composite back upright features integrated 0° of outboard toe to boost traction and avoid suspension system geometry changes in severe crashes. This 1-hole upright can be used on high-traction tracks or tracks with long sweepers, because the position associated with center hole will allow faster driving through those corners because of better cornering speed. More roll center positions can be easily adjusted with the addition of shims between your upright while the turnbuckle ball joint. The trunk upright function little but robust 5x10x4 ball-bearings to attenuate unsprung weight.
Medium rigidity (labeled M) especially optimized for rubber-tire race. For use on both left and right sides of automobile. Are additionally employed for foam tires.
