- If you’ve got a tire that’s been punctured by a nail or another object, the tire can be fixed, but only as long as the puncture is in the tread area and doesn’t measure more than 1/4 of an inch in diameter.
- If the puncture is in the sidewall or shoulder of the tire, you’ve got to ditch the tire and get a new one. Safety first! (TireIndustry.org)
- If there’s more than one puncture, you likely can get the tire repaired if the punctures are at least 16 inches apart. Otherwise, it’s time to buy a new tire.
- If the tire has sustained serious damage in a crash, such as big cuts or tread separation, it should be replaced, not repaired.
- Any damage to the shoulder or sidewall of the tire
- Large holes anywhere in the tire of more than ¼" in diameter
- Evidence of any severe damage, such as tread separation or large gashes
- The tire is damaged in a previously repaired area