Originally Posted by
KerryIrons
If you cannot see any unevenness when the tire is inflated on the rim, I'm having difficulty how you would be feeling bumps due to a bubble on the inside of the tire.
Internal damage to the tire casing may not be apparent if the tire is unloaded (ie, inspecting it on the stand). It seems to me that the puncture resistant layers in a lot of heavy-duty/commuter tires could keep an external bulge restrained, but when the soft spot in the casing is at BDC, it would give more than the surrounding material, causing a “bump” down