OK, now I'm confused. Offset vs. Backspace
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Le Mans Master
Joined: Jul 1999
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From: Sewell NJ
OK, now I'm confused. Offset vs. Backspace
I was reading another thread about wheels and as usual you find out just how much you don't know every day. I know that backspace is the distance measured from the hub to the wheel lip on the inside of the wheel. But what is offset and how is it measured. :confused: :confused: :confused:
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From: Check this riff........
Re: OK, now I'm confused. Offset vs. Backspace (vettfixr)
Usually, offset refers to either positive or negative offset. It is based on the center of the depth of the wheel. For example
a six in wheel the lug nuts directly in the center would have a 0 or zero offset.
Front wheel drive typically have very postive offsets. On a six inch wheel, it would probably have a 2 inch positve offset resulting in 5 inch backspace.
(two inches further out from center equals 1 inch from the outside lip of the wheel)
A rear wheel drive will probably have more of a negative offset Probably at least 1 inch negative, resulting in a 2 inch back space.
I hope this helps.
--marc
a six in wheel the lug nuts directly in the center would have a 0 or zero offset.
Front wheel drive typically have very postive offsets. On a six inch wheel, it would probably have a 2 inch positve offset resulting in 5 inch backspace.
(two inches further out from center equals 1 inch from the outside lip of the wheel)
A rear wheel drive will probably have more of a negative offset Probably at least 1 inch negative, resulting in a 2 inch back space.
I hope this helps.
--marc
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Re: OK, now I'm confused. Offset vs. Backspace (BigBadOrange)
very simple, offset and backspacing are related
an 8" wheel with 0" offset has 4" backspacing
an 8" wheel with 2"pos offset has 6" backspacing .....
[Modified by Twin_Turbo, 1:53 PM 8/4/2003]
an 8" wheel with 0" offset has 4" backspacing
an 8" wheel with 2"pos offset has 6" backspacing .....
[Modified by Twin_Turbo, 1:53 PM 8/4/2003]
Thread Starter
Le Mans Master
Joined: Jul 1999
Posts: 9,206
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From: Sewell NJ
Re: OK, now I'm confused. Offset vs. Backspace (Twin_Turbo)
Ok, so am I correct in saying backspace is measured from the hub to the ip of the inside of the wheel and offset is measured from the outside lip of the sheel to the inside of the hub? To follow your example a zero offset wheel would have a 4 inch backspace and a 0 offset on an 8 inch wheel. If the backspace was 3 inch then the wheel would have a 1 inch offset?
