‹ Tips & Guides home https://s3.amazonaws.com/rnrtires.com/wp-content/uploads/2023/12/18172009/JSATiresInc-261643-Tire-Dry-Rot-blogbanner1.jpg

Tire maintenance ensures your car operates safely. One common issue that many car owners may overlook is tire dry rot, which can result in long-term damage and potential danger when driving. If you’re unfamiliar with tire dry rot, keep reading to learn its signs and how to prevent it from infecting your tires.

What Is Tire Dry Rot?

Tire dry rot, also known as sidewall cracking, occurs when the rubber degrades and breaks down. Heat, exposure to ultraviolet light, and lack of use usually cause this process to occur. Over time, dry rot can lead to cracks in the tire, reducing its structural integrity.

Signs of Tire Dry Rot

Cracks in the Tire Sidewall

Cracks in the sidewall are some of the most apparent signs of tire dry rot. They may appear as small lines or extensive and deep grooves. Regardless of their size, cracked tires compromise the durability of the tire.


Tire dry rot can cause discoloration, making your tires appear dull or faded. The color may shift from a rich black to a grayish hue. Discoloration can sometimes be subtle, so keep a close eye on your tires for any changes in appearance.

Brittle or Hard Rubber

As rubber breaks down from dry rot, it may lose its elasticity and become brittle or hard to the touch. This can indicate it’s time to inspect and potentially replace your tires.

How To Prevent Tire Dry Rot

While some level of degradation is inevitable over time, you can take steps to minimize the risk of tire dry rot:

Regularly inspect your tires at least once a month for signs of dry rot. Pay special attention to cracks, discoloration, and changes in texture. Catching dry rot early can prevent severe consequences, like a blowout, down the line.

Minimize exposure to harsh conditions. Since sunlight and heat worsen dry rot, park your car in shaded areas or inside a garage whenever possible. This is especially important during hot summer days.

Maintain proper tire pressure according to the psi range indicated on the tire. Keeping your tires inflated ensures they wear evenly and reduces the chances of dry rot affecting specific areas of your tires.

Rotate and balance your tires to encourage even wear and minimize the risk of localized dry rot.

Replace Cracked and Brittle Tires at RNR Tire Express

Now that you know the signs of tire dry rot and how to prevent it, you can take good care of your tires. Of course, tire dry rot may persist or worsen despite your best efforts. In those cases, the professionals at the RNR Tire Express tire shop in Tucson can help you find the ideal tires to replace yours. With our tire maintenance services, your tires will operate at their best.

Find A Location Near You

The Tires
You Need

Shop Tires

The Wheels
You Want

Shop Wheels

Sign up to receive special offers.

By signing up you agree to our Privacy Policy.

A background image with five tires in a row.