What is a zipper rupture?

A zipper rupture specifically refers to a type of internal tire damage that occurs when there's a failure in the sidewall of the tire. This failure resembles the action of a zipper opening, as it can create a long split or tear along the sidewall or near the bead area. This condition is often caused by extreme stress, such as hitting a pothole or curb, resulting in the tire’s internal structure giving way in a way that allows the rubber to separate or burst, typically causing an immediate loss of air and rendering the tire unsafe for further use.

While it’s understandable that there can be confusion with terminology related to sidewall damage—terms like circumferential rupture might suggest a specific orientation—zipper ruptures encompass a wider range of effects including different areas of stress and damage on the tire's structure. Understanding this terminology is crucial in properly diagnosing tire issues.

In contrast, issues related to tire pressure, tire balance, and other types of damage do not capture the specific, unique nature of what constitutes a zipper rupture, which is primarily characterized by that distinctive tearing effect in the tire's sidewall. This highlights the importance of recognizing the specific characteristics of various tire damages to ensure proper identification and solution.