Originally Posted by
MidTNBrad
If I purchase a set of tires today and don't put them on a wheel until this time next year, will the tires deteriorate? If they sit in a garage in their original packaging, will they start to dry-rot, become brittle, or loose some of their suppleness?
It depends...
Keep any rubber away for electric motors etc. Ozone is given off by them and not good for rubber.
Machine made - vulcanized
Use sooner than later. One year is no issue anything I've seen. If stored in sun, Ozone then things do start to fall apart sooner than later, but one year is always fine under normal storage situations.
Hand-made - glued treads
IMO, 1 year is better than 1 month. I try to buy my better hand made tires a year in advance. This is mostly for glues to cure. During that time I try to have them keep their shape. So if the clincher has no creases or hard folds, that is fine. If they are creased, let they stretch out.