ST Tire "Plies" Question and a PSI Question

Me Again wrote:
Again, we have had numerous reports of the second tire on the same side fail within limited miles of the first one!!!!!!!! Chris

When my tire actually shredded this time I replaced them all. Being 12 years old, I figured another one would go soon and my time on these had run out. (in fact I went too long as that proved)

However, if I had a puncture on one much newer set of tires, I would just get that fixed and keep the other tires as is. So it depends on what kind of shape and age the other tire is before I would buy two "just in case"

I have had a few punctures but never had one shred like that before. I think any tire good or bad quality can get a puncture, but if one of a newer set of tires shredded I would wonder about the others true quality.

Perhaps that is what some of these different opinions turn on where people are not talking about exactly the same thing, hard to tell. Nobody is a crazy risk-taker here so it is all about situations.

If you did buy two, I suppose they should both go on the same axle and the two older ones would be on the other axle so that would mean a shuffle. The spare would already be on where the punctured one was.
My spare is the old ugly wheel so it has to go back as the spare but if the spare wheel looks like the others it could stay there as part of the shuffle. You would have to draw yourself diagrams to get it all figured out what to tell the garage you want! :)

In my case the spare was previously patched (cut by a sharp rock type of puncture, not just a nail hole) and chosen to be the new spare back then, so I had that tire tossed and the best of the three other old ones is now the spare on the ugly wheel.