[CamaroNOS]

It is called <span style="text-decoration: underline">air infiltration</span>.....trapped air between the inner liner and the exterior of the tire.

Somewhere in the inner liner (interior of the tire), there is a small hole/cut that is allowing the compressed air to migrate out through the casing. This trapped, compressed air will naturally look for the path of least resistance, in other words, the weakest point in the tire construction and try to release itself. The bubble you see is just that, the trapped &quot;migrating air&quot; trying to makes it's departure from your tire through the side wall/turn up ply area.

Do not run this tire, it is what we call in the industry, an &quot;immediate air loss&quot; waiting to happen. And that sometimes can be catastrophic.

Sorry for all the verbage.....deflate this tire and remove it!!!!