14. The AlterKtion front suspension includes a 11/16-inch diameter solid sway bar, which is as stiff as can be used without compromising the street feel. RMS does, however, offer an optional 1¼-inch diameter bar for all-out track use. Depending on your ride height setting and wheel choice, the sway bar can be mounted to the bottom of the control arms, or if reversed, to the top of the control arms. It does not matter.