The pivot cup is fitted in from here. It is molded to the exact shape of the pivot stem, rather than the standard hemispherical design. Its material is several notches softer than the slider, allowing it to flex and mold itself around the irregular movements of the pivot stem. The shape and softness of it helps eliminate speed wobbles and the jittery, unstable vibrations that accompany high speeds, along with providing smoother turns.



The replaceable slider is molded to conform perfectly around the pivot cup; the two fit together as one piece. This incredibly hard, durable polymer is made specifically for sliding and will never crack or compress. It snaps into the bottom of the baseplace from underneath.

Once the slider is snapped inito place and the truck is mounted, the pivot cup is locked and supported just as though it were housed in one solid piece of aluminum.