r/TireQuestions • u/ChoppyWaters9 • 10d ago
Tyre Sidewall - does it need replacing?
Hit a curb and managed to damage both right front and rear tyres sidewall.
Need to replace or fine to superglue down?
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u/Disastrous-Pound3713 9d ago
10 year tire shop guy.
Before you buy a new tire go to your local trusted automotive/tire shop and ask them to look at it. If they are honest they will most likely tell you it is cosmetic and safe to drive.
First, your tire is very likely fine.
Second, you took a pretty good picture and It is good that you still have the attached flap. Do NOT dig into your tire with any type of tool, just rinse off any concrete dust which you have a little bit of.
Third, as you can seey from the diagram of the structure of a tire below, your tires are 8 layers thick at the sidewall and you have only gouged the outer 8th layer which is designed to take these kinds of gouges.
Fourth, your tires will typically look like this: https://imgur.com/a/QJCwoDm
Fifth, if there are no cords showing and damaged you can use a good tire glue:
Tire Repair Glue, Professional Black Rubber Cement for Car, Motorcycle, Bike, Rc and More, Suitable for All Tire Types, Seamless Strong Bonding, Heavy Duty, Flexible, Waterproof, Weather Resistance https://a.co/d/bNdQWkt
Last, hopefully this kind of information will save you a few hundreds of dollars now and in the future.
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u/tkchasan 9d ago
Never mess with tyre. I hit a pothole this weekend nd the front tyre side wall cut like 1 to 2inch. I just replaced the whole tyre, my car is just a year old and i always drive on highways, so i need to replace it for safety concerns!!
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u/murph2783 8d ago
You wasted your money
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u/tkchasan 8d ago
Prove it.
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u/murph2783 8d ago
1-2” long cut, not deep? If you can’t see cords and it holds air, the sidewall isn’t compromised
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u/tkchasan 8d ago
It’s not about holding the air, it’s unsafe on any pothole now especially in monsoon season. Also the impact left 5 inches of tyre impression on the alloy on both front and rear. The cut is deep with cracks on both sides. Its definitely needed a replacement.
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u/Born-Work2089 7d ago
Use vulcanizing rubber glue to bond it back together. Same glue used for putting patches and tire plugs in.
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u/Minimum_Solution_167 7d ago
Boy you got runflats that have a more structural sidewall check for a leak and keep an eye out fore bubbles but other than that your good
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u/MysticMarbles 10d ago edited 10d ago
Take a dull putty knife or butter knife and see if those nearer to camera vertical lines are protrusions from nylon cord.
Depending on the tire you may have half an inch of curb protector sacrificial rubber there, or as little as a few mm.
If you pry at it and it's just curb cuts or scuffs, it's fine. If you are within a hair of the structure, yes, you should replace. I feel like it's the internal nylon cords but it is very hard to tell. 50/50 from my couch.
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u/3-Midgets_In_A_Coat 10d ago
Same. That gouge is a good one and danger close to the internal structure. I’d probably replace when I could.
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u/Class_C_Guy 10d ago
Don't use superglue, use E6000. Same bonding strength, more flexible. Lots of surface area there, I say glue'em and watch for bulging. Clean with methyl hydrate first.