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Question about backspacing

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Old Dec 24, 2008 | 04:17 PM
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Default Question about backspacing

I know the stock sahara 18 inch rims have a 6.25 backspacing. What happens if you buy rims that have the correct bolt pattern of 5 on 5 but say a 5 inch back spacing instead of 6.25? how does that effect the appearance? and will they go on the hub?
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Old Dec 24, 2008 | 04:18 PM
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Wheels will simply be set "out" from stock by the difference in the backspace... The BS you mention - 5 would be slightly wider in stance...
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Old Dec 24, 2008 | 04:20 PM
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Originally Posted by tbfreebird
Wheels will simply be set "out" from stock by the difference in the backspace... The BS you mention - 5 would be slightly wider in stance...
ok thank you. I don't like the wider look so I'll keep seaching for 6.25! thanks man
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Old Dec 24, 2008 | 04:25 PM
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Originally Posted by garrett490
ok thank you. I don't like the wider look so I'll keep seaching for 6.25! thanks man
now i have another question! crap! If I get 17x9 wheels with say a 5 inch or 4.75 inch backspacing...does that mean I won't need spacers for 12.50 wide tires?
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Old Dec 24, 2008 | 04:32 PM
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For that wide of a tire - you will need some back space to keep from rubbing. If you do a quick serach on tire rub and backspace - there is a ton of info.

I went with 33's and 11 - ish width and a 4' backspace and have no rub with no lift. It really depends on your combination of mods and what you can do without needing backspace, etc...
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Old Jan 1, 2009 | 05:21 AM
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I have 33x12.5 on a 17x8 wheel that has 4.5BS and from what I was told there is no rubbing issues at full turn either way. attached you can see the difference in sizes. installed and next to the stock, it seems taller because there is no weight on the tire so it will be a little bit taller.
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Old Jan 1, 2009 | 07:07 AM
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I have 5.75 inches of backspacing, probably as tight as you want to get with a 12.5 inch wide tire. They are MB Motoring V-drive and they were advertised in 25mm offset. they are 8.5 inches wide by 17 inches. No rubbing and my tires are under the fenders like you want.




Spare has a 1.5 inch spacer to keep it off the stock bumper for now. Very secure and tight not causing issues after 6 months of being on there.

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Old Jan 1, 2009 | 07:20 AM
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The "Gold Standard" is 4.5" backspacing on an 8" wide wheel, which is the same as 5" backspacing on a 9" wheel. Keep in mind that there is a difference in section width with wider wheels and taller tire height with narrower wheels, differing from the measured wheel width of the tire manufacturer. In round numbers you will increase section width by .4" for every inch extended beyond the tire manufacturers tested wheel width and increase tire height by the same when narrowing wheel width.
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Old Jan 1, 2009 | 08:23 AM
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Originally Posted by JPop
The "Gold Standard" is 4.5" backspacing on an 8" wide wheel ...
Which is basically what I'm running. This photo should give you an idea of how wide that actually looks with 285/75R-16 (slightly over 11" wide) tires:

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Old Jan 1, 2009 | 08:54 AM
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Originally Posted by garrett490
I know the stock sahara 18 inch rims have a 6.25 backspacing. What happens if you buy rims that have the correct bolt pattern of 5 on 5 but say a 5 inch back spacing instead of 6.25? how does that effect the appearance? and will they go on the hub?

it affects the appearance by making the jeep look beter.....

they will go on the hub, prolly mo better than the stock ones......


corey d
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