What is 90% tire depth of 14:00-R20 AT2A tires? That is the question. I see lots of used tires and many sellers call them out at 90% or better, but what really is 90%? If I am to buy said I want to insure I am getting what I seek / my moneys worth. I started digging......... If you CLICK HERE you go to Goodyears site for the 14:00-R20 AT2A tires. At the bottom you see tread depth is called out in 32's of and inch, with a new tire at 30/32's of an inch deep tread depth. If we multiply 30 times (x) .9% it equals 27. So if the math is correct 27/32's of an inch is the minimum thread depth a tire should be if it is actually 90% or better tread depth. Elaborating, 1/32" = 0.03125" , so, 27/32" = .84375 (90%) and a NEW tire depth would be .9375" of tread depth for those who want to measure w/ a depth gauge but do not have a 32" reading tire tread depth tool, of which the MILTON No. 940 works well with these monsters because it has a very long anvil (if you will) . I would assume there is a standard spot on a tire where one would measure this, that being center of tire. I would expect an inflated tire might read a deeper tread depth than a non-inflated tire.
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What is 90% tire depth of 14:00-R20 AT2A tires?
- Thread starter Artisan
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When I sold tires for warranty adjustment purposes, we measured at 3 spots/treads across the tire and came up with an average in order to be fair to the customer. Some tires for many, many reasons are not worn the same across. Inflation should not make any difference.
mcmullag
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I measured my tires on my M923a2 with 12,000 miles on it. 3/4 of an inch or 24 32nds.
Yes, that was my first step actually. The Click Here link in post 1 covered that. I wanted to determine what 90% actually is. I am finding that the majority of folks do not know what 90% really is, especially sellers, seems like it is a black art of sorts eyballin' these monsters. This will help me and others when making a purchase. Some of those Milton tread depth tools are still available for cheap on Ebay. I have 2, one to mail to a seller to measure with and my own.