The Poling Group's new Tire Geometry Testing Verification Wheel provides the quickest way possible to verify your LRO/RRO geometry testing lasers. The verification wheel chucks directly on your testing machine's current rims (up to 19") and therefore requires no machine requalifying after verification.
Lateral Runout (LRO) :
Both sidewall faces consist of four bulge/depression plates of varying
heights. A ring on the outer 1" has a height variant of .15" for precision
Radial Runout (RRO) :
Three bands on the 'tread' side of the wheel each have a different height variant to verify RRO laser measurements.