question:what is the 'real' backspace of a rugged ridge wheel?

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03-04-2012, 04:38 AM

#21

MitchMG

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catalog says, 12mm offset BS 4.625 for the 9x17 rims

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11-06-2013, 05:03 AM

#22

davison0976

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Quote:

Originally Posted by kimp5756

Re: Backspacing?
Originally Posted by kimp5756
Quick question for ya...I'm really interested in your black satin wheels w/machined lip 17x9, what is the backspacing on this particular wheel?
And I did read correctly that these are hub-centric, right?
Thanks
Joe
Joe,

Yes the wheels are hub-centric, they were designed to fit the JK. The offset is +12mm which should make the backspacing 5.5".

Thank you,

Rugged Ridge
Rugged Ridge
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Jeep Accessories, Bumpers, Lift Kits, Seat Covers, Soft Tops, Wheels, Winches by Rugged Ridge

I have just gotten these wheels, measured them, and they have 4.5" backspace. These should be advertised as -12mm offset, not as having 12mm offset. Positive offset gives you more backspace and we are looking for less backspace if want to run wider tires. The new calculation is,

10/2 - 1.2/2.54 = 4.5"

As someone had mentioned need to add 1" to account for flanges. That's why it's 10 not 9. 9" is the width from inner to inner flange, but overall the 17x9 wheel is 10" wide.

Last edited by davison0976; 11-08-2013 at 04:54 AM. Reason: New information