Sidewall

The sidewall is the area of the tyre between the tread and the bead. It contains critical information including the tyre size, load index, speed rating, manufacturer, and production date. Sidewall damage — such as bulges, cuts, or cracks — is a serious safety concern and usually means the tyre must be replaced immediately. The sidewall also contributes to ride comfort, with taller sidewalls absorbing more road imperfections.