Service Charts 159 Dual Wheel Mounting A Excessive road camber, different types of tire, different circumference or off-center loading gives faster wear on one tire. B Too low air pressure, mismatched rims for the tire type and dimension, excess flexing in tire wall, or different types of tires in inner and outer tires gives contact wear. T1006718 Incorrect Caster and Imbalance A Caster angle. B Imbalance. Also rapidly wears the mechanical parts of steering linkage, kingpin and wheel bearing. T1006460 Cuts in the Tire Tread A Cuts. B Flaking cuts. C Rubber flaking. Cuts are due to poor roads, air pressure too high or incorrect tire type. T1006720