Is a bulge on the tire serious?

[McRonan]

Automobile tire bulges are serious and should be replaced promptly. The main causes of tire bulges are as follows: 1. Crown separation: Crown separation mainly manifests as delamination at the top of the tire tread (referred to as the crown surface). The primary reason is excessive tire pressure during use, which reduces the tire's contact area, leading to early wear. During operation, rolling acceleration or poor heat dissipation causes the tread temperature to rise. The adhesion between the cord layers decreases, and the increased centrifugal force on the tread causes crown delamination. 2. Shoulder separation: Shoulder separation is a type of sidewall bulge, divided into local and overall types, commonly found between the tire tread and sidewall. It mainly appears as noticeable bulges, resembling bubbles! Some may be ring-shaped, indicating complete separation! The sidewall and tire body are clearly detached. This is caused by insufficient drying of the cord during the tire manufacturing process before rubber coating, or excessive moisture content in the rubber itself, which is a quality issue.