This is a set of four replacement AKA Racing EVO Wheel Stiffeners, and
are intended for use with the AKA EVO wheel. The first and most
important purpose for these is to further stiffen the wheel and
especially help the inner most bead of the wheel hold it's shape. The
second purpose of this dish is to block dirt from being trapped within
the inner ribbing of the wheel and throwing the wheel out of balance.
These design innovations provide a stiffer wheel, without going to
stiffer and therefore more brittle plastic or increasing wall thickness
which gives up clearance and adds weight at the outer edge of the wheel.