Doesn't take much, you assume you have a perfect seal while the nail is in there, which will never be the case, with the pressure build up and how much the treads/belts shift during every rotation into the contact patch. Again it is usually never noticeable until it fails later on. Usually when you get a nail, there is a slow leak, even if it is very slow (not noticeable over days), there is some leak, hence an opportunity to get water in. It could just be condensation over night, from a warm/cold/warm condition. Now if you never drive through the rain or in any puddles, etc, and your weather is stable, then you have a better chance. It is like car insurance, you gamble with something happening - with tires, it isn't worth it to me, I drive this car like it should be driven, and a failed tire on an on/off ramp/back road, would be not be a good situation (over $200) - and I have seen this happen to tires many, many times.
|