Offset and backspacing is not the same thing.
Offset is positive unless specified negative.
Negative offset is not common on wheels today
and it would not fit a Roadster without big flares.
European and Japanese wheels today are marked
ET and a number. For example ET25 is offset
25 mm. ET-25 is negative offset 25 mm.
Thomas
Ronnie Day wrote:
> >Amid all of this debate about Z wheels, what exactly is the offset of stock
> >roadster wheels and what is the exact offset of the Z "kidney bean" mag
> >wheels? As I said B4, the 14x6" SHELBY wheels I pulled off a junked Z work
> >great--ie. no fender rubbing at all. I'll pull one at lunch and try to
> >find the listed offset on these wheels so that we'll know why mine worked
> >and others haven't. BTW, my fenders are stock.
>
> A suggestion. When discussing wheels how about being a bit more specific
> about wheel offset? Is the offset positive or negative? Are we talking
> about backspacing? I hate to assume anything. I like to know both,
> although if you know one measurement you can calculate the other if you
> know the rim width. It's much easier on my old, tired, brain if they're
> stated.
>
> FWIW,
> Ron
>
> Ronnie Day
> ronday@home.com
> ------------------
> Dallas/Ft. Worth
> ------------------
> '71 510 2-dr (Prepared Class Autocrosser)
> '73 510 2-dr (Street Toy)
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