Tire Diagnosis
Tire Scalloped
The problem may be
WORN PARTS
Your tires may give you clear signs of wear problems in time to have them
corrected before they cause permanent damage to the tires. You can prevent wear
problems that shorten tire life by thousands of miles by learning to "read" the
early warning signs & taking appropriate corrective action.
Cups or dips in the tread: Cupping (also called dipping or scalloping) is most
common on front tires, although rear tires can cup as well. It may be a sign
that wheels are out of balance or that suspension or steering system parts need
service or replacement.