How to Prevent Tire Flat Spots When Storing Your Car

Will Tire Flat Spots Go Away After Storage? My Expert Take

As a technician who’s spent decades diagnosing ride-quality complaints, I can tell you that tire flat spots are one of the most overlooked problems when a vehicle sits for weeks without being driven. When you finally roll it out of storage and feel that rhythmic thump-thump at low speeds, you’re not imagining things. What you’re feeling is the result of tire flat spots from sitting, and whether or not tire flat spots will go away depends on several key factors.

What Causes Tire Flat Spots

When a vehicle sits parked in one position for a month or more, especially in cold weather, the tires can develop tire flat spots. This happens because the warm nylon cap ply or steel belts inside the tire cool down and “take a set” against the pavement. In other words, the portion of the tire in contact with the ground flattens slightly under the vehicle’s weight.

If you drove the car shortly before parking it, the tires were warm and pliable. As they cool, that area can stiffen in a slightly deformed shape. The next time you drive, the result is a thumping vibration that feels like a bad wheel balance — but it’s actually just tire flat spots from sitting too long.

In many cases, tire flat spots will go away after 15–20 miles of steady highway driving as the rubber warms back up and regains its round shape. But in other cases, especially with low-profile or high-performance tires, the damage can be semi-permanent.

Which Types of Tires Are More Prone to Flat Spotting

Not all tires behave the same when it comes to tire flat spots from sitting. From my experience, high-performance tires are far more likely to develop tire flat spots than standard touring or all-season tires. Here’s why:

• High-performance tires use softer rubber compounds designed for grip, not long-term storage.

• Their sidewalls are stiffer and shorter, which means the tread section flattens more easily under load.

• Their wider contact patch holds more heat and cold from the road surface, which increases the “set” effect when the tire cools.

• Because they’re more flexible, they deform faster and take longer to regain shape once you start driving again.

If you have a sports car or performance sedan that you store during winter, you’ve likely experienced tire flat spots from sitting at least once.

You Can Prevent Tire Flat Spots From Sitting Before They Start

Over the years, I’ve tested just about every method people claim will prevent tire flat spots, and here’s what really works:

• Use jack stands or a vehicle lift. The absolute best solution is to take the load off the tires entirely.

• Drive the vehicle every few weeks. Even a short 10-mile drive helps prevent tire flat spots from sitting.

• Avoid parking on cold concrete if possible. Concrete draws heat out of the tires faster than asphalt or rubber mats.

• Maintain proper inflation. Don’t over-inflate unless the manufacturer specifically recommends it for storage.

Some high-performance tire makers suggest inflating to the maximum listed on the sidewall — typically about 3 psi higher — but even they prefer you store the vehicle on stands instead of the tires themselves.

How about over-inflation to prevent flat spotting?

You’ll see all kinds of advice online to over-inflate your tires to the maximum pressure listed on the sidewall. Tire manufacturers disagree on whether to over-inflate at all when your vehicle will be parked for a month or more. Even when they recommend over-inflation, it’s only to the maximum listed on the sidewall. The only exception is for high-performance tires. In those cases, most tire makers do recommend inflating to the maximum listed on the sidewall. However, their preference is to put the vehicle on jack stands.

See this post on tire company recommendations for long-term storage.

Do Tire Cradles or Supports Work?

I’ve tested several “tire cradle” products, and the truth is they don’t work as advertised. To be effective, the cradle would need to perfectly match the curvature of your specific tire. Since most cradles are sold in a one-size-fits-all shape, they don’t match any tire correctly.

No tire manufacturer recommends tire supports or tire cradles

No major tire manufacturer recommends these supports for long-term storage. In short, if you want to prevent flat spots, save your money and either elevate the vehicle or move it periodically.

Will They Go Away After Driving?

This is the most common question I get. The answer depends on how severe they are and how long the car has sat.

Temporary flat spots (from sitting for a few weeks) often disappear after 15–20 miles of highway driving as the tires heat up.

Severe flat spots (from sitting months or through freezing temperatures) can cause permanent deformation in the belts or tread.

If your tires are old, have internal cord damage, or the thumping doesn’t go away after a long drive, the tire’s flat spots will not go away completely. In that case, replacement may be your only option.

©, 2024 Rick Muscoplat