What's the safety point (speed rating) on a V rated tire if you have to have a patch for an extremely slow leak caused be a very small flat nail?
Doesn't anybody have an answer for me. I need to know how fast I can go still without having any safety issues.
The speed rating is for a unmolested factory tire. A small nail hole with a patch inside the tire should not be an issue for most driving.
If you are driving over 120 MPH for long periods you might consider a new tire. Driving 80 MPH on the interstate for long periods should not cause too much concern.
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So long as it is repaired correctly you shouldnt have any issues unless you are pushing it to the max. In the military we repaired our own tires . First we plugged the hole , then we ground out an area so the patch would sit almost flush inside it. Granted these werent high speed tires , but we have had the Hummers well over 80 MPH with no issues.
Since I have a V6 I dont have the issues with top speed you do , lol.
Ok, so you think I'm safe for stretches between 70 & 90 with an occasional burst to 110ish on occasion (til I replace). The tire shop guy told me because it is a V rated tire he did not drill out the hole to save some of the speed rating. He told me not to go over 140 (not a problem with a stock RT anyway).
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With a properly repaired tire (at a good tireshop), I don't think you will have a problem 70-90 with a blast to 110 once in awhile.
The risk *IS* higher for a blowout, can't deny that.... but I, Personally, would have no problem with it in my ride.
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The actual rule of thumb is, you loose 1 speed rating for every repair up to 2, after the second repair, it drops to a S speed rating(102 mph) so if you have a V rated tire, it is now an H(130 mph)...and that's only if the tire was repaired using tire industry standards...
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