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Peeling bike tire

Old 06-21-23, 09:12 AM
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Peeling bike tire

Hello I found out that my front tire start to peel near the sidewall,about one and half inch long,there is nothing structurally wrong with tire it is just surface tin layer of rubber.Tires are Kenda small block 8 .Now I applied some glycerol on tires few days ago because I drive in dry conditions and can glycerol cause this?And can I apply some super glue or other glue just to prevent further peeling or it can damage rubber? It is strange because tires are 7 month old and I didn't drive to much excessively except last month and bike was under the sun only few times except when I drive on sunny days
And just one more question I found small cracks very very small cracks on the whole tire but in upper position on the edges where front surface starts ,not near the rims ,so do I have more few month with this tires because I don't won't to change them yet because I like how fast they are
So any advice, appreciate
​​​​​thanks
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Old 06-22-23, 11:22 PM
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Originally Posted by Tase
Hello I found out that my front tire start to peel near the sidewall,about one and half inch long,there is nothing structurally wrong with tire it is just surface tin layer of rubber.Tires are Kenda small block 8 .Now I applied some glycerol on tires few days ago because I drive in dry conditions and can glycerol cause this?And can I apply some super glue or other glue just to prevent further peeling or it can damage rubber? It is strange because tires are 7 month old and I didn't drive to much excessively except last month and bike was under the sun only few times except when I drive on sunny days
And just one more question I found small cracks very very small cracks on the whole tire but in upper position on the edges where front surface starts ,not near the rims ,so do I have more few month with this tires because I don't won't to change them yet because I like how fast they are
So any advice, appreciate
​​​​​thanks
Cracking comes from:
1. age
2.UV exposure over time
3. Running on an almost flat tire
4. Chemical exposure could do the same if not compatible with the rubber.
5. exposure to a heat source (stored leaning on the furnace/water heater/hookah

Get new tires, or prepay the Uber/Lyft ride, or pre plead to girlfriend/boyfriend/parent to pick you up. And good medical dental paid up. A flat won't likely kill you, but a blowout can hurt you. A tire failure at speed can be ugly. See Curious George in the upper left? He needed to be an etherhuffer after his tire blew out
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Old 06-23-23, 07:14 AM
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When you wrote, "my front tire start to peel," I immediately thought "replace the tire." Cracking rubber usually means old tire, but doesn't necessarily mean it's unusual. (Yes, you've only had it for a few months, but it may have spent years in warehouses and the back of a shop.)

But if something starts peeling off the body of a tire, there was a problem in production, and it can continue until it blows out. If you're lucky, it'll peel until anything that looks sharp will give you a flat. Sucks to have to replace something that's new to you; perhaps you can take it back to where you bought it and get a refund. And don't buy another of that brand/model from that shop -- buy a different brand or model, because everything they have in stock that may have come from the same production batch is suspect.
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Old 06-23-23, 07:59 AM
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Replace them whenever you feel like it is appropriate. We don't know what your conditions, environment and traffic is where you ride. I can only suppose that a flat on a very busy congested road with some other mitigating factors might end up a disaster. But for me, I've never had a blowout or tire failure that was a problem or seemed like a potential harm to me. At most the tire feels a little squirrely as it gets low on air. But that lets you know to slow down because something is wrong. And I've also had blowouts that result in sudden loss of pressure too. None where a issue even when at speed.

Tubed tire? There might be a possibility that the tube will burst out and tangle up in things, however it'll probably burst before the sidewall fails enough for it to come out of the tire. I had a sidewall of an old deteriorated gumwall tire unzip on me once, but the tube did burst and stayed inside the tire even though the rip was several inches long.

As long as the threads of the casing are intact, the tire is, for the most part, structurally sound. However without the outer protection, It might fail sooner than later.
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Old 06-23-23, 08:53 AM
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Just MHO but any issues with either tire would result in replacement. Compared to the results of a tire failure at 20 mph, cost of new tire is minimal.
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Old 06-23-23, 11:46 AM
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Originally Posted by pdlamb
When you wrote, "my front tire start to peel," I immediately thought "replace the tire." Cracking rubber usually means old tire, but doesn't necessarily mean it's unusual. (Yes, you've only had it for a few months, but it may have spent years in warehouses and the back of a shop.)

But if something starts peeling off the body of a tire, there was a problem in production, and it can continue until it blows out. If you're lucky, it'll peel until anything that looks sharp will give you a flat. Sucks to have to replace something that's new to you; perhaps you can take it back to where you bought it and get a refund. And don't buy another of that brand/model from that shop -- buy a different brand or model, because everything they have in stock that may have come from the same production batch is suspect.
Yes this I never thought that tire is maybe for years stored somewhere,you are absolutely correct it can be cause.For now under the peel it is hard surface and peel is probably half mm in thickness,so very thin,it looks like they do final layer thin patch in factory in upper port of tire body. But I can replace tire it is not that expensive,it is more that I'm lazy because iv done already lot of work on this bike,and of course I will not buy from the same store ,thanks from advice !
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Old 06-23-23, 11:53 AM
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Originally Posted by etherhuffer
Cracking comes from:
1. age
2.UV exposure over time
3. Running on an almost flat tire
4. Chemical exposure could do the same if not compatible with the rubber.
5. exposure to a heat source (stored leaning on the furnace/water heater/hookah

Get new tires, or prepay the Uber/Lyft ride, or pre plead to girlfriend/boyfriend/parent to pick you up. And good medical dental paid up. A flat won't likely kill you, but a blowout can hurt you. A tire failure at speed can be ugly. See Curious George in the upper left? He needed to be an etherhuffer after his tire blew out
Do you think it can be combination of glycerol with UV light,I mean glycerol can soften surface to much like cream on your skin ,and after this came UV and uvb heat and it just crack the skin because it was to soft already,and is it smart to use glycerol on bike tires anyway?
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Old 06-23-23, 11:54 AM
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Originally Posted by Inusuit
Just MHO but any issues with either tire would result in replacement. Compared to the results of a tire failure at 20 mph, cost of new tire is minimal.
True
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Old 06-23-23, 12:06 PM
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Originally Posted by Iride01
Replace them whenever you feel like it is appropriate. We don't know what your conditions, environment and traffic is where you ride. I can only suppose that a flat on a very busy congested road with some other mitigating factors might end up a disaster. But for me, I've never had a blowout or tire failure that was a problem or seemed like a potential harm to me. At most the tire feels a little squirrely as it gets low on air. But that lets you know to slow down because something is wrong. And I've also had blowouts that result in sudden loss of pressure too. None where a issue even when at speed.

Tubed tire? There might be a possibility that the tube will burst out and tangle up in things, however it'll probably burst before the sidewall fails enough for it to come out of the tire. I had a sidewall of an old deteriorated gumwall tire unzip on me once, but the tube did burst and stayed inside the tire even though the rip was several inches long.

As long as the threads of the casing are intact, the tire is, for the most part, structurally sound. However without the outer protection, It might fail sooner than later.
Funny both tires looks great except this small 1 Inc peel , absolutely nothing wrong with nothing ,the air pressure is good,I was looking carefully and there is no room for further peeling or maybe I'm wrong , because of tire structure I can't explain better ,I think picture itself is better for explaining.
Do you have some advice for tires similar to kenda 8 ,for mixed surfaces some affordable but decent tires?
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Old 06-23-23, 12:30 PM
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Originally Posted by Tase
Funny both tires looks great except this small 1 Inc peel , absolutely nothing wrong with nothing ,the air pressure is good,I was looking carefully and there is no room for further peeling or maybe I'm wrong , because of tire structure I can't explain better ,I think picture itself is better for explaining.
Do you have some advice for tires similar to kenda 8 ,for mixed surfaces some affordable but decent tires?
When you decide to replace them, just get whatever you feel good about. I've seen posts here by others with similar issues for tires that are in the 60 - $100 range from what are considered some of the best brands. Just consider it a one off thing.

I'm okay with Kenda's if you want an inexpensive tire. I rode them for many years. But for the last 15 or so years I've been riding on the much more expensive Vittoria and Continental bicycle tires. The same ones mentioned in the posts of others that have had similar issues. Though I've not had any issue with them or the Kenda's I use to ride. Though Kenda's were the gumwall tire that I mentioned my sidewall ripped. But that was a old tire that anyone else but me would have changed. I just like seeing how far tires will go before failing.

Even today I ride bicycle tires till the first flat after the tread is worn so thin that you can see the air on the inside. <grin> ... except for times my next ride is very important to me. Like a century ride or something special with others.
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Old 06-23-23, 12:36 PM
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Originally Posted by Iride01
Replace them whenever you feel like it is appropriate. We don't know what your conditions, environment and traffic is where you ride. I can only suppose that a flat on a very busy congested road with some other mitigating factors might end up a disaster. But for me, I've never had a blowout or tire failure that was a problem or seemed like a potential harm to me. At most the tire feels a little squirrely as it gets low on air. But that lets you know to slow down because something is wrong. And I've also had blowouts that result in sudden loss of pressure too. None where a issue even when at speed.
This assertion is so different from my own experience I have to wonder what your definition of "speed" is? I've had a couple blowouts over 30 mph, and those were memorable, to say the least.
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Old 06-23-23, 12:50 PM
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Originally Posted by pdlamb
This assertion is so different from my own experience I have to wonder what your definition of "speed" is? I've had a couple blowouts over 30 mph, and those were memorable, to say the least.
Somewhere in between 20 and 30. I've not had a flat or blowout when at very high speeds so I can't say what would happen.

I don't doubt that some have had bad wrecks when their tires blow out, even at lower speeds. But I don't think it common as I've never had any controllability issues when flatting regardless of the speed.

However one should consider where they are riding. If a ride in the near future is going down the side of a mountain with very tight switchbacks, I might put a new tire on for most any imperfection I see.
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Old 06-23-23, 01:38 PM
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Originally Posted by Iride01
When you decide to replace them, just get whatever you feel good about. I've seen posts here by others with similar issues for tires that are in the 60 - $100 range from what are considered some of the best brands. Just consider it a one off thing.

I'm okay with Kenda's if you want an inexpensive tire. I rode them for many years. But for the last 15 or so years I've been riding on the much more expensive Vittoria and Continental bicycle tires. The same ones mentioned in the posts of others that have had similar issues. Though I've not had any issue with them or the Kenda's I use to ride. Though Kenda's were the gumwall tire that I mentioned my sidewall ripped. But that was a old tire that anyone else but me would have changed. I just like seeing how far tires will go before failing.

Even today I ride bicycle tires till the first flat after the tread is worn so thin that you can see the air on the inside. <grin> ... except for times my next ride is very important to me. Like a century ride or something special with others.
I was thinking more like tires for mixed terrains ,I drive on mountain uphill on a mountain road or whatever it is ,and the road is dry sandy with some part of the road with bigger small sharper stones about 1,2,3 inches ,so im training uphill then turn downhill sometimes at fast speed ,then I go home on asphalt road, the tires shows good grip in corners downhill,and are also very good on road for MTB tires it seems to be fast tires for asphalt of course not like road bike tires but enjoyable .So because there is so many tires online I don't know what is good for my condition of driving except I will probably not buying the same model of tires because of obvious reason so if you maybe know some exact models who are good for both nature and road , just to save my time for searching ,maybe tire with smaller threads or bigger robust threads something like this? I mean I can ask in store but majority of sellers don't care. Thanks
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Old 06-23-23, 01:48 PM
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Originally Posted by Tase
I was thinking more like tires for mixed terrains ,I drive on mountain uphill on a mountain road or whatever it is ,and the road is dry sandy with some part of the road with bigger small sharper stones about 1,2,3 inches ,so im training uphill then turn downhill sometimes at fast speed ,then I go home on asphalt road, the tires shows good grip in corners downhill,and are also very good on road for MTB tires it seems to be fast tires for asphalt of course not like road bike tires but enjoyable .So because there is so many tires online I don't know what is good for my condition of driving except I will probably not buying the same model of tires because of obvious reason so if you maybe know some exact models who are good for both nature and road , just to save my time for searching ,maybe tire with smaller threads or bigger robust threads something like this? I mean I can ask in store but majority of sellers don't care. Thanks
I only ride paved road. Occasionally gravel or packed dirt road... very seldom. So I just don't have any experience with anything that has a tread pattern.

Maybe others will comment. I read good things about Maxxis . But don't have any experience with them.
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Old 06-26-23, 11:15 AM
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Originally Posted by Iride01
I only ride paved road. Occasionally gravel or packed dirt road... very seldom. So I just don't have any experience with anything that has a tread pattern.

Maybe others will comment. I read good things about Maxxis . But don't have any experience with them.
Thanks maxxis looks nice
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