Technician A says that a tire with more wear on the center of the tread is caused by under. Inflation of the tire Technician B says that feathering of the tire tread is most commonly result of excessive toe in or toe-out Who is correct? a. Technician A b. Technician B c. Both Techakcian A and Technician B d. Neither Technician A nor Technician B

## Step 1<br />This problem is about understanding the causes of tire wear patterns. Technician A suggests that a tire with more wear in the center of the tread is caused by under-inflation of the tire. This is indeed true. When a tire is under-inflated, the center of the tire tends to bear more weight, leading to more wear in the center.<br /><br />## Step 2<br />Technician B, on that feathering of the tire tread is most commonly a result of excessive toe-in or toe-out. This is also true. Feathering is a wear pattern that occurs when the tire is not aligned properly, either with too much or too little toe-in or toe-out. This misalignment causes the tire to scrub down the road, leading to a feathered wear pattern.