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.