Originally Posted by
1989Pre
Over the winter, I had been using my front tire to hang a wet towel on to dry after I get out of the bath each night.
Today, I noticed some fine lines on the smooth surface of the road tire (it was hard to get a photo of it). They don't appear to be deep, but there was more than one section of it. Can repeated moisture do this?
Rubber is pretty much impervious to water. The casing of your tire might not be, so if there are cracks in the rubber or other ways for the moisture to get to the casing, that might be what you are seeing. Doubtful that this is an issue other than cosmetic and it might go away as the tire dries out.