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Old 10-23-2010, 09:20 AM   #3
DrtyJack75
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Join Date: Feb 2008
Location: West Sacramento, CA
Posts: 417
Re: Backspacing vs Offset

Yeah I keep readin that and when I think I understand then I get confused again. Haha

So if a 20x8.5 has a 5.25 BS, then that's the measurement from the back of the rim that meets up with your rotors/drums to the back of the wheel?

So why do I care about Offset? If a rim is 8.5 wide and the BS is 5.25 that leaves 3.25 for the center of the wheel and whatever Lip you have on the face of the rim itself.

Is Offset and BS virtually the same thing just a different way to measure it OR do I need to be concerned with BS AND Offset?

I have a Porterbuilt Dropmember and want these wheels and the dealer says yes the front are 5.25 BS and the rears are 5.5 which is what Nate (Porterbuilt) said they use...do I need to be concerned with the different offsets
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