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Old 02-22-2012, 09:15 PM   #1
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wheel off set question.

Looking at these outlaw wheels. What is an off set of 15? Looking at doing a 2" lift and 280/70 17 tire. Here are the wheels. I think I figured out bs not good on off set. BS looking for 4.5 I also see most off sets as Neg numbers

American Outlaw Buckshot custom rims

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Old 02-22-2012, 09:26 PM   #2
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An offset of 15 means that the distance from the center point of the wheel to the mounting surface that mates to the hub of the Jeep is 15mm. Since it is a positive 15 on this wheel, that means that the mating surface is closer to the face of the wheel than to the rear of the wheel. On a 9" wheel, this equates to a backspace of 5.6". I wouldn't recommend that large of a backspace with a 285 tire personally. You could might be able to get away with it, but I would try to find a wheel that was closer to that magic number of 4.5" backspace. The larger the backspace, the closer the wheel and tire remains to the suspension components, airdam, etc. This increases the likelihood of rubbing and contact.

Here is a handy dandy app you can play around with.
Custom rims, wheel tire packages for your ride - RIMSnTIRES.com

For visual reference, here are my 285s mounted on wheels with 4.5" backspace. The wheels you are looking at would be tucked under the fender a full inch further than this.

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Old 02-22-2012, 09:41 PM   #3
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I'm with 4fit. 5.6" bs is pretty tight...if you run that with an aftermarket lift that has new swaybar end links, it could very easily rub. Try to find something with 4.5" bs or less.

Here's a pretty simple equation you can use to convert offset to backspace:

Offset to Backspace conversion:
Take offset, divide by 25.4, then add the overall rim width (rim width +1) divided by 2

so: 16x8 with -27 mm offset

-27mm / 25.4 = -1.06" + (((8"+1")/2)= 4.5") = 3.43" BS


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Old 02-22-2012, 10:58 PM   #4
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agree also..a zero offset to negative 27 would fit best.
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Old 02-22-2012, 11:19 PM   #5
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Quote:
Originally Posted by whitejeep View Post
agree also..a zero offset to negative 27 would fit best.

hahaha...nice sig, dude.
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Old 02-23-2012, 06:39 AM   #6
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thanks this helped alot

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