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Old 09-29-2013, 09:24 PM   #1 (permalink)
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Krawler shelf life?

I know red label krawlers tend to crack with age. I just sold my 3 year old krawlers to get some new ones. They had the typical cracks that krawlers get. I have 2 brand new spares that have been always stored inside. They are 2-3 years old. Will they tend to crack any sooner than new ones? Do the tires age much when stored inside?
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Old 09-30-2013, 03:29 AM   #2 (permalink)
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Tyres only have a 5 year life span, check date of munfature on the sidewalls to work out there age.

The older tyres won't perform or wear same as the new tyres.

Last edited by Sim79; 09-30-2013 at 03:42 AM.
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Old 09-30-2013, 10:15 AM   #3 (permalink)
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Do you think I will see a real difference if they have been stored inside for 2-3 years?
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Old 09-30-2013, 07:02 PM   #4 (permalink)
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Anyone have any first hand experience here?
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Old 09-30-2013, 07:30 PM   #5 (permalink)
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I wouldn't think it's a problem lots of 10yr old krawlers out there
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Old 10-01-2013, 03:03 AM   #6 (permalink)
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Do you think I will see a real difference if they have been stored inside for 2-3 years?
Age damages tyres, the rubber slowly hardens.

I have seen people sold brand new tyres and the sidewalls blew out, when the dates were checked on the sidewalls they were sold old tyres.


Lots of people run old tyres, they just perform there best in the first 5 years from date of manufacture.

Last edited by Sim79; 10-01-2013 at 03:14 AM.
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Old 10-01-2013, 08:02 AM   #7 (permalink)
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Yes, they still age. I have a brand new sticky irok that looks 10 years old because of cracking.It is about 5 years old. I had another one like that and ran it. No issues so far.
What ruins a tire isn't always external like sun or heat. The air inside of the tire has ozone in it which slowly seeps through the rubber on a molecular level. This breaks down the tire from the inside out. No air = longet tire life. Not sure how much exactly. Not sure how nitrogen plays into it either.
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Old 10-01-2013, 08:11 AM   #8 (permalink)
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I had an OLD (around 10 years) set of krawlers on my rig. They had cracks like all the krawlers do. They also still took my rig places few could go. I had looked into the change in rubber hardness (I think durometer) due to age and found some information about it concerning road racing tires. They to are made from soft compounds and become unusable after so long due to the rubber hardening. So yes the rubber hardens but yes the tire will still be usable. So in summary you should probably send your old tires to me so I can destroy them for you. They'll never work
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Old 10-01-2013, 01:20 PM   #9 (permalink)
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If you are talking about a highway driven rig, I would pay attention to age for sure, like the Aussie says, but for a krawler on a trail rig, I wouldn't even think about the age, just run em.
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Old 10-01-2013, 05:37 PM   #10 (permalink)
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I just ran a set of 10 year old krawlers at the U4 race in Hot Springs. Came in 10th, no tire issues. We took the right side of Ingrids every time along with most of the other more difficult lines when the easy lines were clogged up. Then I took 7th in the shootout with a broken front gear.
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Old 04-28-2014, 12:15 PM   #11 (permalink)
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I've found how to date a tire with a DOT number. But, how do you date a red, with no DOT number? What numbers do I use, and how do I read them?
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Old 04-28-2014, 01:24 PM   #12 (permalink)
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Came in 10th... We took the right side of Ingrids every time along with most of the other more difficult lines when the easy lines were clogged up. Then I took 7th in the shootout with a broken front gear.
cool tire tech
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Old 04-28-2014, 02:58 PM   #13 (permalink)
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I ran an ~8 year old, used, beat on, set for 2 years, they leaked through the cracks (lost 2-5 psi per day) but still worked. I got rid of them this year as the sidewal tread started to rip off in huge chunks.
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Old 04-28-2014, 05:20 PM   #14 (permalink)
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I've found how to date a tire with a DOT number. But, how do you date a red, with no DOT number? What numbers do I use, and how do I read them?
It's been a few days but I think there are still date codes on them. I remember looking at mine. Not sure if it was a dot # or what though, can't remember
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Old 04-28-2014, 05:55 PM   #15 (permalink)
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I've ran 10 year old blue labels on the street and no problems. Mine were stored indoors and were even used on a comp rig for a little while. No problems from the age of the tire, but the beadlocks leaked a little. Even at 10 years old, they hook up better than the new tires from the competition
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Old 04-28-2014, 08:01 PM   #16 (permalink)
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There is a way. I just sent a text asking a friend of mine. My rig came with reds that were part of BFG first run. I have since sold them since I was going to race and didn't trust them at speed. Guy I know runs them on a toy with no issues.
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Old 04-29-2014, 01:39 AM   #17 (permalink)
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I wonder if that Aerospace303 stuff would make a difference? It claims to replenish the plasticizers that make rubber soft, to prevent cracking...
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