Andy, "ET" stands for a German phrase that literally means "pushed back" (or
so I've been told). Anyway, ET20 means the mounting face of the wheel is
pushed out 20mm from the centerline.
Bill
----- Original Message -----
From: "Andy Walker" <awtiger@cox.net>
To: "Tiger List" <tigers@autox.team.net>; <alpines@autox.team.net>
Sent: Saturday, May 07, 2005 2:14 PM
Subject: Wheel measurements
> Hey, guys:
>
> I've run across some info on wheel measurements that I do not understand
> and I
> was hoping someone on these two lists might be able to decipher it for me.
> First of all, I'm planning to purchase some Minator wheels for my Series I
> Alpine vintage racer in the size of 13" x 5.5". I asked my supplier for
> backspace measurements on both a 5" wheel and a 5.5" wheel and he got the
> following response from Minator:
>
> 5" wide wheel has a backspace measurement of "ET20"
> 5.5" wide wheel has a backspace measurement of "ET25"
> (my quotation marks)
>
> Does anybody understand that description? I've e-mailed my supplier back
> with
> that question and he, in turn, has e-mailed Minator but, so far, we have
> not
> received an answer. Can anyone decipher that?
>
> Many thanks,
> Andy Walker
> '60 Sunbeam Alpine Series I
> '67 Sunbeam Tiger Mk1A
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