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Mickey Thompson tires don't measure a true 35 inches


Moglocker

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Wtf,I got jipped,不不

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HornedToad

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That is very normal. Part of the reason is because the actual height is usually a quarter to half less (you can find this on the spec sheet) and the fact that you have the weight of the vehicle pushing down on it causing the bottom to bulge makes it less tall.
 
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Moglocker

Moglocker

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That is very normal. Part of the reason is because the actual height is usually a quarter to half less (you can find this on the spec sheet) and the fact that you have the weight of the vehicle pushing down on it causing the bottom to bulge makes it less tall.
Yes but a 35 measuring lsss than 33-3/4?
 

Jerry Bransford

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The bottom sidewall is not at full unweighted height, don't measure from the ground and expect to see the tire's real diameter. Not to mention few 35" tires are actually 35".
 

SvtLdr

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Wouldn't a more accurate method be to take the weight of the vehicle off the tire and measure the circumference with a flat tape. Then take that number and divide by PI to calculate the diameter? This would take the contact patch (flat spot) out the measurement. You probably still won't get 35" but you might get closer to it.
 

mrblaine

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Wouldn't a more accurate method be to take the weight of the vehicle off the tire and measure the circumference with a flat tape. Then take that number and divide by PI to calculate the diameter? This would take the contact patch (flat spot) out the measurement. You probably still won't get 35" but you might get closer to it.
Or just measure it horizontally.
 

srimes

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Wouldn't a more accurate method be to take the weight of the vehicle off the tire and measure the circumference with a flat tape. Then take that number and divide by PI to calculate the diameter? This would take the contact patch (flat spot) out the measurement. You probably still won't get 35" but you might get closer to it.

Yes. Back when I was in pipe manufacturing we had Pi-tapes. Precise to .001 and easy to use. Also compensates for out-of-roundness.

 
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Zorba

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The bottom sidewall is not at full unweighted height, don't measure from the ground and expect to see the tire's real diameter. Not to mention few 35" tires are actually 35".
That's the point. But its the difference between the "diameter" and the "effective diameter" - just so we're talking oranges and oranges.
 

suicideking

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Some run smaller than others. Not sure about the BFG KM3, but the KM2 always ran small. I had Cooper STT Pro in a 35 X 12.5 X 15 and those ran small too.

The GY MTR seem to run closer to size.
 

freedom_in_4low

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Just divide 5280 by the manufacturers specified revolutions per mile, convert to inches and divide by pi. That'll give you effective rolling diameter, and you can find your resulting hub height, and nothing else matters.
 
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