What Causes a Tire to Feel Bulged but Not Visible?

[MacRowan]

Here is a detailed introduction to the reasons why a tire may feel bulged but not visibly so: 1. Puncture or impact damage: Check if there is any puncture or impact damage on the tread or sidewall corresponding to the bulge. If found, have it repaired at a professional tire repair shop. The principle is that when a cord in the fabric breaks, under the pressure, it gradually pulls out from its original position, causing a sidewall bulge. This phenomenon will become visibly noticeable later, appearing as a radial bulge. 2. Joint of the tire body cords: If there is no damage at the corresponding location and the bulge can only be felt by hand, not visibly obvious when inflated, it is likely the joint of the tire body cords, which does not affect usage. 3. Delamination of components: If the bulge is circular, it should be claimed at the tire dealer or 4S store as it is a quality issue—delamination between rubber components or between rubber components and the tire body cords.