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Help me understand this...

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Old Jul 20, 2010 | 08:52 PM
  #11  
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Originally Posted by DARB
No change in axel height in your theoretical question.

Rith on, thats what I wanted to know.

Thanks
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Old Jul 21, 2010 | 05:09 AM
  #12  
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think of it this way... your axle centerline is always located in the center point of the tire. so from the centerline of the axle to any point on the outside edge of the tire is always 16 inches (not considering air pressure and tire squat from the weight of the vehicle of course). It doesnt matter what diameter of the wheel, the height of the TIRE detemines axle height from the ground.
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Old Jul 21, 2010 | 10:52 AM
  #13  
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Originally Posted by spleify
...if I have 17" wheels on my Jeep and I put on 16" wheels, going from say 32" tires to 32" tires, wil I lose or gain any over all axle height.

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Net zero if the tire heights are the same. 16" rims have nothing to do with 32" tires except 32" 16's will have an additional inch of sidewall.
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Old Jul 21, 2010 | 11:17 AM
  #14  
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I'm with the first guy who said 1/2. Maybe a little less but the taller side wall would be more prone to bulging. All this theoretical stuff can be a pain. I say same tires on 16 and 17s = little bit lower.
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Old Jul 21, 2010 | 12:16 PM
  #15  
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Originally Posted by SBEII
I'm with the first guy who said 1/2. Maybe a little less but the taller side wall would be more prone to bulging. All this theoretical stuff can be a pain. I say same tires on 16 and 17s = little bit lower.
If the tires with air in them, installed on the vehicle, are 33" high, the wheel size does not make a difference. Certain tires will be taller/shorter when installed, but the installed height is the installed height. So tires (the the kevlars) will have little or no sidewall bulge, whether you are running 15's or 22's (ick)
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Old Jul 21, 2010 | 03:03 PM
  #16  
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Interesting
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Old Jul 21, 2010 | 04:17 PM
  #17  
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I think that both responses coming in (no change and some change) are both accurate. I've looked at a lot of tires over the past few weeks deciding on what set up I wanted to go with, and observed the following. What a tire manufacture calls a 35 or 33 or whatever can vary in actual diameter depending on which rim size you go with. For example a 35 MTZ on 17" wheel may have an overall diameter of 34.6 but the 18" wheel could be 35.1. It may have more to do with the "ratio" or something rather than the size of the hole punched out for the wheel. Anyway, I'd say you could see up to a 1/2" diff but prob not much more than that.
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Old Jul 21, 2010 | 04:48 PM
  #18  
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Again, I am very aware of the variances in different tires and realize not are all exactly the same even when being sold as a 35" or 32" or whatever. Tire wear, tire inflation, load in vehicle can all play a roll in this as well.

The question I am asking about is not the TIRES, but the difference in the size of the WHEEL, going from a 17" WHEEL to a 16" WHEEL.

Thanks for all the replies folks.
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Old Jul 21, 2010 | 05:16 PM
  #19  
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Originally Posted by spleify
Again, I am very aware of the variances in different tires and realize not are all exactly the same even when being sold as a 35" or 32" or whatever. Tire wear, tire inflation, load in vehicle can all play a roll in this as well.

The question I am asking about is not the TIRES, but the difference in the size of the WHEEL, going from a 17" WHEEL to a 16" WHEEL.

Thanks for all the replies folks.
Well, since you can't put a 17" tire on a 16" rim and vice versa, you're talking about two different spec tires. So you have to discuss the tires. Again, installed height is installed height and varies by tire. Period, end of discussion.
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Old Jul 21, 2010 | 05:20 PM
  #20  
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Originally Posted by Alec
Well, since you can't put a 17" tire on a 16" rim and vice versa, you're talking about two different spec tires. So you have to discuss the tires. Again, installed height is installed height and varies by tire. Period, end of discussion.
Gotcha!! Thats what I was looking for!

Thanks everyone!
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