Over time, the pilots on the hub can lose tolerances originally intended from the factory, allowing an offset between the wheel and the hub bearing.
In fact, an offset the thickness of just a couple playing cards can result in an out-of-tolerance radial wheel runout. Radial runout contributes to excess tire wear, increased fuel consumption, driver fatigue, and even the loosening of lug nuts and wheel "clocking".
Polyamide wheel centering sleeves take up the gap between the 22mm stud and the 26mm wheel opening, realigning the wheel to the TRUE CENTER of the hub bearing.
International patent-pending design works in conjunction with hub-piloted mounting systems and OEM style 2-piece flange nuts, assuring a centered wheel, and eliminating radial runout.