The Intercomp Precision Hub Plate System is used in place of the wheel and tire setup, and simulates loaded tire diameter. Eliminates tire pressure, weight, and size variations when setting corner weights, while providing easy access to suspension adjustments! The Precision Hub Plate System has and adjustment range in 1/8" or 1mm increments, and features shielded steel ball bearings for increased durability. This also allows the system to move freely with the suspension, preventing binding and inaccurate figures. It features adjustable rulers for camber measurement, as well as adjustable toe stance.