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To tires expire?(5 posts)

To tires expire?metonymy3
Oct 18, 2001 3:00 PM
If I order something from a website, and they've got cheap tires, so I throw a couple into my order so I don't pay the shipping for the tires. Great so far, but if I don't really need tires right now, and I stick the tires in the garage (I suppose I could keep them in a closet if that would help) for a while. Are the sidewalls going to rot or something like that? I know that when I see an old bike that's been in the shed a while (like my Dad's :-) the sidewalls are often gone. How long is it ok to store the tires?

And... Are Grand Prix better that GP3000 of the other way around? I heard somewhere that plain GPs wear much better.
Not reallyKerry Irons
Oct 18, 2001 3:59 PM
Assuming you store them in a reasonable place (not hot, not wet) they will last for years. You are going to wear out your current set in the next year or so, aren't you? The longest I've ever kept a tire was about 5 years - stored in the open air, in a dry basement, on a shelf. No noticeable aging, although I suppose the tread could have gotten a bit harder and the sidewalls a bit dryer.
Mine DidUncleMoe
Oct 19, 2001 5:16 AM
I had a tire in my garage (San Diego, not too hot, somewhat dry weather) that I bought about two years ago. I then took a break from road biking. I got back into it this summer with a new bike and started commuting.

After I wore out my stock tires, I went to put this one on. The tire's bead had dried up pretty good. It actually crumbled in my hand pretty easily. I would never put it on my bike.

Unless it is an incredible deal or you'll be using them within 1 year at the latest, I wouldn't do it. If you do, just realize you may be tossing them out.
Yes and no,TJeanloz
Oct 19, 2001 7:27 AM
Tires exposed to certain elements will "expire", but with some common sense storage- they won't. Air that is either very wet or very dry isn't good for tires, nor is UV light. The best place to keep them is in a closet, under the bed- somewhere indoors, where the temperature and humidity remain fairly constant, and out of sunlight. If you take those precautions, they should last forever.

However, even if you leave them in the window of your garage, they'll probably last a year or two- so you don't need to worry.
no and depends on how you ride.jw25
Oct 19, 2001 1:31 PM
Provided you keep the tires away from ozone (so don't store them near electrical motors), they should stay usable for a few years. Back in the day, you were supposed to store tubulars for 6 months to a year, to age them, though this might be due to unvulcanized rubbers. I was still a glint in my Pa's eye when tubies were big.
I'd just wrap them in brown paper, then plastic if you live in a humid clime, and store them in the basement/garage.
As to GP's vs. GP3000's, the plain Gran Prix's will wear better, but the 3000's have less rolling resistance and greater traction. If they're racing tires, go 3000's, but for riding or training, the GP's or even the Ultra 2000's are better choices. Every 3000 rear I've seen has squared off after a few hundred miles, indicating rapid wear.