Old tire?

Wingboy

Wingboy

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Date stamp on this worn out tire is 09.Obviously it is well past done,but i have never seen a tire crack like this one.It looks like it cracked where it sat with weight on it for some time.Max pressure might have helped,but the owner wasn't worrried about it because he was going to replace it anyway.Strange.
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Wingboy said:
Date stamp on this worn out tire is 09.Obviously it is well past done,but i have never seen a tire crack like this one.It looks like it cracked where it sat with weight on it for some time.Max pressure might have helped,but the owner wasn't worrried about it because he was going to replace it anyway.Strange.
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Amazing, i've never seen that either. How sensitive are bike tires to the cold (ie. if you took a tire that was very flat [and had been for a while, causing a huge flat spot], and inflated it rapidly at -20 could you get it to crack?) It's not really a scenario that the bike tire manufacturers would normally design for.
 
Wow it looks almost like a glass fracture pattern

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Softer compound/race tires will do this - some even come with stickers stating that the tire should not be mounted below 5 degrees C. So if that tire was flexed cold it could fracture like that. Seen it a few times.
 
Did that to a frozen takeoff once it was frozen onto the ground and I hit it with my plow pushed it into bank in spring had same issue only about ten times worse. My guess is this one was frozen and maybe dropped or drove over???
 
Looks to me like you have a new purchase ahead of you sadly. BUT! On the bright side you have an excuse to do a burn out right away :)
 
looks like i shouldnt be riding with bt-r10's in the winter
 
Wasn't mine.It was a GPa.
 
Age or date of manufacture is irrelevant. That's a race tire that has been moved/had weight applied to it while it was well below freezing. Same thing will happen if to a brand new race tire if left in the same conditions.
 
Wingboy said:
Date stamp on this worn out tire is 09.Obviously it is well past done,but i have never seen a tire crack like this one.It looks like it cracked where it sat with weight on it for some time.Max pressure might have helped,but the owner wasn't worrried about it because he was going to replace it anyway.Strange.
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Max pressure of weight on the tire might be a factor, but it reminded me of something I saw in Youtube, a scooter tire cracked, and then it lost chunks of rubber. I don't think the weight is the main factor, as scooters may be lighter than bikes.

http://www.youtube.com/watch?v=exfKJrBv63o

See the cracks at 1:30
 
Pff, why sweat it? The tire is down to the wear bar anyway
 
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