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Dumb Question...Backspacing

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Old Jan 5, 2008 | 10:58 AM
  #1  
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Default Dumb Question...Backspacing

Could someone explain what backspacing is?
i know it deals with larger tires but i thats about all i know.
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Old Jan 5, 2008 | 11:10 AM
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Please look here.

Modified FAQ
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Old Jan 5, 2008 | 03:59 PM
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Thanks, that was just what i was looking for.
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Old Jan 5, 2008 | 04:30 PM
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what exactly is it that you need to know?
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Old Jan 5, 2008 | 06:23 PM
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basically what it boils down to is the lower the backspacing this means the more the tire will sit farther out towards the street in that diagram. Obviously offset can well offset this and bring it back in or even farther out, but typically backspacing is the key measurement. say 4" backspacing will stick out significantly while anything more than 5" may require spacers. Correct me if i am wrong guys?
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Old Jan 5, 2008 | 06:37 PM
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Originally Posted by Robar
Please look here.

Modified FAQ
This is a very helpful link. Thanks.
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Old Jan 5, 2008 | 07:18 PM
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Originally Posted by James76
basically what it boils down to is the lower the backspacing this means the more the tire will sit farther out towards the street in that diagram. Obviously offset can well offset this and bring it back in or even farther out, but typically backspacing is the key measurement. say 4" backspacing will stick out significantly while anything more than 5" may require spacers. Correct me if i am wrong guys?
I have a 4" backspacing on mine and they dont stick out far at all. If they did I wouldn't want them. I have pics posted in show n tell.
I was on the phone with Quadratec and they use a 4 7/16" backspacing.
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Old Jan 5, 2008 | 08:29 PM
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how will i know if i need backspacing and how is backspacing increased or decreased?
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Old Jan 5, 2008 | 09:28 PM
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It depends on what width rim and tire you go with. You're getting a bigger tire I assume so you will more than likely want less backspacing than a stock rim. The more backspacing the farther the rim will stick out of the wheel well. I have an 8" rim with a 4" backspacing and 12.5" wide tires ,this is what it looks like. Hope that helps. Keep in mind the front wheel is slighlty turned.


Last edited by 08SaharaM6; Jan 5, 2008 at 09:30 PM.
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Old Jan 6, 2008 | 05:43 AM
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offset will also change how far it sticks out. You can have 2 rims with identical specs and one has different offset, and u will get 2 totally different looks. Granted offset doesnt change as much as backspacing tho Killer lookin rig there 08SaharaM6
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