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Wheel diamter between front and rear

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Old 07-17-2018, 04:08 PM
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coffeebowl
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Default Wheel diameter between front and rear

is there a percentage that you have to be within when comparing the wheel diamter between the front and the rear? Just so I dont throw off the ABS and traction control but I guess it depends on certain cars

Last edited by coffeebowl; 07-17-2018 at 08:48 PM. Reason: Spell check
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Old 07-23-2018, 06:39 AM
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Norm Peterson
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I've heard 3%, and to be picky I think that's 3% on tire revs/mile which probably differs a little from 3% on tire diameter.

I imagine it has to be at least that much in order to work properly with cars where two of the tires are at full tread depth and the other two are well into the wear bars.


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Last edited by Norm Peterson; 07-23-2018 at 06:41 AM.
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Old 07-23-2018, 10:20 PM
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imp
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Originally Posted by coffeebowl
is there a percentage that you have to be within when comparing the wheel diamter between the front and the rear? Just so I dont throw off the ABS and traction control but I guess it depends on certain cars
What matters is rolling diameter match between front and rear, if you don't mind unlike tire sizes front to rear. For example, a 235-70-15 rolls at 27.9 inches diameter. A 255-55-17 rolls 28.0 inches, only 3/10 % difference (0.3%).

You could use the fatter ones in back, narrower in front, ABS remains unaffected.

It's easy enough to calculate, if you ask I'll show how I do it. imp
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