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Old 09-19-2007, 11:33 AM   #1
BIGSKYWRX
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Default effect on grip w/ time w/ snow tires?

I've got a set of Nokian NRW's (discontinued for at least two years now)- have run them four "winters" (mid Oct-mid April), they still have an amazing amount of tread left, but am somewhat concerned they may have outlived their normal life grip wise- I know first hand that hi po tires can outlive their grip- irregardless of tread depth. The snows are always stored in the basement at a "comfortable" temp and completely out of any sun- opinions on the effect of time (heat cycles?) on snow tires?

TIA
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Old 09-20-2007, 09:30 AM   #2
BIGSKYWRX
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^ bump
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Old 09-20-2007, 11:09 AM   #3
Aaron'z 2.5RS
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As long as thety aren't "weather checking" they should be fine... If they start to harden, than i would be ocnserned..
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Old 09-20-2007, 11:33 AM   #4
ringe
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It seems like the biggest factor in tire degradation is exposure, to the sun and the elements. Storing them like you do in the basement is probably the best thing for them, I would imagine they would do fine this winter. Just my .02
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Old 09-20-2007, 02:56 PM   #5
BIGSKYWRX
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no weather checking whatsoever, measured the tread at ~ 5/32, all blocks still have visible siping

they don't appear to "hardened", but that one is a tough one to gauge

I'll probably give them a go
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Old 09-22-2007, 07:37 AM   #6
Uncle Scotty
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Mike.....the only real issue(other than heat cycles/hardening) that I can think of is deterioration of the carcass/rubber due to environmental/storage conditions.....ozone from any kind of electric motor(or something that produces sparks/arcing) near where they were stored could be an issue as could chemical attack or direct sunlight or something like that....

I should think that any kind of issue/failure would occur rather quickly after they are returned to service rather than not......if the first couple hundred miles are good, they will likely be fine for the season or until they are 'done'.

GL
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Old 09-22-2007, 10:04 AM   #7
BIGSKYWRX
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Thanks Scotty. I've looked them over very throroughly and by all appearances look very good and while my hand is not a calibrated durometer by any stretch - they feel "normal" as well. I'll be putting them on in the next week or two (well before "real" winter hits) and will monitor them closely.

If someone told me five years ago that I'd get this much wear out of set of tires I probably would have laughed in their face. Ofcourse my "summer" tires more than make up for gains I'm getting out of my "winter" tires
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