[s-cars] UrS4/6 5 spoke forged Ronal wheels

[Pram]

Ken:

I weigh them awhile ago on my bathroom scale.  They weigh 16.8lb each
(16x8 five spoke).

HTH,
Pram


On Tuesday, March 11, 2003, at 09:12 AM, Dave Forgie wrote:

> Ken:  I don't know if anyone answered you or not but there was nothing
> on the list.  While there have been aftermarket replicas of some Audi
> wheels, I have not seen any of the UrS4/S6 five spoke wheels (at least
> when I was looking for a set to replace my OEM 15" six spoke
> Speedlines).  I thought Fuchs built the OEM wheels but it could have
> been Ronal. (The set that I finally found aren't marked in any way as to
> the manufacturer).
>
>  The Deutsch for "forged" is apparently "Geschmiedet" as in "this thing
> was beat into shape by a black smith" kind of thing.  For what I know
> cast is not as strong or light as forged since in a cast wheel the
> orientation of the crystals is very uniform because of the fact that
> molten metal is poured into a mould.  To forge a wheel, they take a very
> hot (picture glowing red) billet of metal and place it into a huge high
> pressure press that squeezes this glowing lump into the "negative" mould
> (think kids pushing plasticine into moulds).  This creates a strong
> wheel (or crankshaft) because the crystals are forced to follow the
> lines of the mould.  Or something like that.
>
> Sounds like you may have a find.
>
> Dave (who isn't a metallurgist) F.
>
> Ken Ng wrote:
>
> Does any one know the weight of the 16x8 ET40 5 spoke
> forged Ronal wheel that were OEM on the UrS4/6? Also,
> does anyone know if cast replicas of this wheel are
> available? Lastly, how would one tell the difference
> between a forged vs. a cast wheel (other than weight)?
> I was able to find a couple of new ones and the
> markings on the wheel seem to be authentic (have the
> word "Geschmiedet" - (German for forged?) stamped on
> the inside, but the asking price seems low and perhaps
> I'm paranoid, but i subscribe to the 'if its sounds
> too good to be true, then its too good to be true'
> school...
>
> any suggestions on how i could verify if the wheels
> are forged or cast would be much appreciated...
>
> cheers,
> Ken
>
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