Your tires should normally wear fairly evenly across the tread. If one side is wearing faster than the other, certain areas are becoming bald, or one tire looks different from the rest, there may be an issue that needs attention.
Uneven tire wear can be caused by incorrect tire pressure, tire problems, suspension issues, or a wheel alignment problem.
What Causes Uneven Tire Wear?
Several parts of your vehicle work together to keep your tires properly connected to the road. When something isn't working correctly, your tires may begin wearing faster in certain areas.
1. Your Wheel Alignment Is Off
One of the most common causes of uneven tire wear is improper alignment.
Your wheels need to sit at specific angles so the tires make proper contact with the road. If those angles change, certain parts of the tire can wear faster than others.
An alignment problem may cause wear along the inside or outside edge of a tire or create a feathered tread pattern.
Hitting potholes, curbs, and road debris can change your alignment. Suspension repairs and modifications can also affect alignment settings.
A professional vehicle alignment can measure the wheel angles and determine whether adjustments are needed.
2. Your Tire Pressure Is Incorrect
Incorrect tire pressure is another common cause of uneven wear.
An underinflated tire can wear more quickly along the outside edges, while an overinflated tire may wear faster through the center.
Check your tire pressure regularly and follow the manufacturer's recommended pressure. If the pressure is correct but the wear continues, another issue may need to be inspected.
3. Your Tires Aren't Being Rotated
Tires don't all experience the same amount of stress. Front tires, for example, handle steering forces and often experience more wear than rear tires.
Regular tire rotations help spread that wear more evenly across the vehicle.
If your tires haven't been rotated according to the manufacturer's recommendations, some may wear much faster than others. However, rotation won't fix an underlying alignment or suspension problem.
4. Your Suspension Components May Be Worn
Your suspension helps keep your tires in contact with the road. As components wear, the wheels may no longer stay in the proper position.
Worn ball joints, tie rods, bushings, control arms, and other suspension components can affect tire wear and handling.
If you notice uneven tire wear along with a vehicle that feels loose or unstable, the suspension may need to be inspected before an alignment is performed.
5. You Could Have a Tire or Wheel Problem
Not every tire problem is caused by alignment.
An improperly balanced tire can cause vibrations, while a damaged tire or wheel can also create unusual wear patterns.
If your vehicle starts vibrating at certain speeds or you notice a change after hitting a pothole, the tire and wheel assembly should be checked.
A professional inspection can help determine whether you're dealing with a tire, balance, alignment, or suspension issue.
What Does Different Tire Wear Mean?
The location and pattern of the wear can provide clues about what is happening.
Inside edge wear: An alignment or suspension issue may be involved.
Outside edge wear: Alignment problems or incorrect tire pressure can cause increased wear along the outside edge.
Center tread wear: Excessive wear in the center can be a sign of overinflation.
Both edges wearing: Faster wear on both outside edges may indicate underinflation.
Feathered wear: If the tread feels smooth in one direction but rough in the other, you may be experiencing feathering. This can be associated with alignment problems, particularly incorrect toe settings.
These patterns aren't a guaranteed diagnosis, but they can provide useful clues when your vehicle is inspected.
Can Wheel Alignment Extend Tire Life?
Yes. Proper alignment helps your tires maintain better contact with the road and can reduce unnecessary wear.
When your vehicle is properly aligned, the tires can roll in the direction they are intended to travel instead of scrubbing against the road.
Alignment isn't the only factor that affects tire life. Tire pressure, driving habits, road conditions, tire quality, rotation, and suspension condition all play a role.
However, maintaining proper wheel alignment is an important part of getting the most life out of your tires.
What About Trucks and Heavy-Duty Vehicles?
Uneven tire wear can be especially costly on trucks and commercial vehicles.
Pickups, work trucks, vans, and heavy-duty vehicles often carry heavier loads and travel more kilometres than passenger cars. A small alignment problem can result in significant tire wear over time.
Proper truck alignment can help improve handling and reduce unnecessary wear, especially for vehicles that spend a lot of time on the highway.
When Should You Have Your Alignment Checked?
If you notice unusual tire wear, don't wait until the tire is completely worn out.
Consider having your vehicle checked if:
- One tire is wearing faster than the others
- The inside or outside edge is wearing quickly
- Your steering wheel is off-center
- Your vehicle pulls to one side
- You recently hit a pothole or curb
- You recently had suspension work
- Your vehicle feels unstable
- You notice new vibrations
Finding the cause early can help prevent further tire damage and potentially save you from replacing tires sooner than necessary.
Don't Ignore Uneven Tire Wear
Uneven tire wear is more than a cosmetic issue. It can be a warning that something isn't working properly with your vehicle.
The cause could be tire pressure, rotation, tire balance, suspension components, or wheel alignment. Getting the problem checked can help protect your tires and make sure your vehicle is handling properly.
If you're in Lethbridge and notice unusual tire wear, CW Alignment can inspect your vehicle and determine whether a car alignment, truck alignment, or other service is needed.
Proper vehicle alignment helps your tires work the way they should, improves handling, and can help you get more life out of your tires.