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Surface cuts on tire tread - how many is too many?(5 posts)

Surface cuts on tire tread - how many is too many?Fez
Aug 16, 2002 7:31 AM
Assuming no flats or punctures, what is a safe rule of thumb for replacing tires?

I never even come close to wearing down the tread, but as the miles pile on, I get little cuts in the rubber. I probably have 3 or 4 on each tire and little stones tend to settle into them. None have gone into the casing, but the small surface cuts in the rubber leave the casing more vulnerable. Is this anything to worry about? Or does the kevlar bead take care of it even though a microscopic piece of rubber is gone?

What is a good rule of thumb for tire safety?

Surface cuts are OK, but as soon as one gets into the casing, then immediately replace?

Or if you have 5 or more little surface cuts, then don't fool around and just replace the tire?
One through the casing for me nmPdxMark
Aug 16, 2002 8:16 AM
so it don't matter if you have 5 minor cuts in the rubber,Fez
Aug 16, 2002 8:34 AM
but once the casing gets nicked, then replace?
Aug 16, 2002 12:35 PM
All those little surface cuts don't mean anything. Just remove anything that may be stuck in the tread. If it's a small slice, I wouldn't say the casing is more vulnerable. the chances of something else hitting the exact same spot are slim.

Once the casing is torn you need to be more careful. A puncture through the casing will be fine. Put a patch on the inside of the tire and you'll be as good as new. Patch may not even be necessary.

If there is a slice through the casing it's probably time to replace the tire. Although, if the tire was new I'd be tempted to continue using it until I felt I got my moneys worth.

Tip: I ocassionally inspect the tread closely for embeded pieces of glass. If you find something that's hard to get out with your fingernail, deflate the tire and pinch the tread. The object will be much easier to get out.
re: Surface cuts on tire tread - how many is too many?getoffmywheel
Aug 16, 2002 6:52 PM
I think it depends on the tires you have. I like to run Rubino Pros and the only time this happens is when the tread wear is pretty thin, the numerous cuts just tell me it's time to change (after frequent flats). On the other hand, when I ran some Huthinson Carbon Comps, one cut turned into a lenghty tear. Sidewall cuts, I throw them out.