What Are the Causes of Wear on the Outside of the Front Tires?

Tire wear on the outside of a vehicle's front tires is a common occurrence that has many causes. Tire wear patterns offer important clues on the health and functionality of a vehicle's front suspension system. What follows is a brief list of the most common causes of wear on the outside of a vehicle's front tires.

Tire Underinflation

Underinflated front vehicle tires can cause excessive or abnormal wear on the outside perimeter of the tires. Underinflated tires tend to fold inward towards the middle, a condition that causes the outside edges of the tires to press downward with abnormal force, which can cause excessive outside tire wear.

Unbalanced Tires

Vehicle tires need to be properly balanced before they are installed on a vehicle. Front tires that are improperly balanced or not balanced at all prior to installation on a vehicle will develop abnormal wear patterns, including excessive outer tire wear.

Incorrect Wheel Alignment

Inadequate wheel alignment, a condition that can be caused by faulty front suspension parts or a damaged or bent vehicle rim, can cause excessive outer front tire wear. Abnormal front wheel alignment places abnormal stress and loading on front tires, a condition that can cause excessive outer front tire wear.

Worn Shocks/Struts

Worn shocks and struts can allow vehicle tires to track abnormally and/or develop excessive sway, both of which can cause tire wear. Worn shocks and struts on a vehicle's front suspension can cause excessive tire wear, including outer front tire wear.

Worn Tie Rod Ends

Tie rod ends are a critical component of a vehicle's front suspension that affects front wheel alignment. Worn tie rod ends negatively impact tire stability and wheel alignment, both of which can cause wear on the outside of a vehicle's front tires.