Molded-composite back upright features integrated 0° of outboard toe to improve traction and stop suspension system geometry alterations in serious crashes. This 1-hole upright can be utilized on high-traction songs or tracks with long sweepers, considering that the place of center gap enables faster driving through those corners because of better cornering speed. More roll center roles can be simply modified by the addition of shims between the upright and the turnbuckle ball joint. The rear upright feature small but robust 5x10x4 ball-bearings to reduce unsprung weight.
Medium rigidity (labeled M) especially optimized for rubber-tire racing. For use on both remaining and right edges associated with vehicle. Is also employed for foam tires.
