Alignment specialist informed me that caster is not adjustable, and that mine was out of spec. Was not told of caster being nonadjustable before vehicle was purchased. Will lead to excessive and erratic tire wear, as had occurred on the original set of tires, properly inflated and rotated per KIA recommendations. All 4 original tires had less than one-sixteenth inch remaining tread depth after only 17.163 miles driven. Extremely poor quality Continental tires on a somewhat pricey new SUV.