If a staggered set of rims has 4.5" and 5.5" of backspacing, how do you turn that measurement into offset?
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Rim backspacing to offset
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1" = 25.4mm
A 7" wheel = 177.8mm so from the inner lip of the wheel to ET0 would be at 88.9mm
Now, 4.5" = 114.3mm. Removing that from the center (114.3-88.9), you're left with 25.4mm of positive offset. (Nice coincidence)
Following the same math, that 8" wheel should have an offset of +38.1mm
If that makes any sense.
So the answer is no TJ, they are not worth buying :pErick Mahle | FullOpp Drift | YouTube
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Originally posted by Mr. Anderson...one of the most hardcore E30's around. :D
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offset is backspacing minus (1/2 wheel width lip to lip). Then convert from inches to mm.
Erick, keep in mind that wheel width is measured from bead to bead, so add maybe 1/2" for lip-to-lip measurement, depending on the wheel. It's best to accurately measure.
for example, if that 8" wheel (we'll call it 8.5" lip to lip) has a 5.5 backspacing,
5.5 - (0.5 * 8.5) = 5.5 - 4.25 = 1.25". 1.25" is 31.75mm.Jay
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well I'm considering the seller that measured them did the right measuring. But who knows how to do that nowadays.
Perhaps it was a bad call on my side. :p
Oh, and stop browsing around for other 16" wheels and drop some sort of deposit on the Ewings already :pErick Mahle | FullOpp Drift | YouTube
EurostopUSA | Dunlop Tires | Ireland Engineering | EnthusiastApparel | Ground Control
..::Support FullOpp::..
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Originally posted by Mr. Anderson...one of the most hardcore E30's around. :D
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