Re: [CR]Odd Campagnolo cranks for the experts...


Date: Mon, 30 Jan 2006 19:23:59 -0800
From: Tam Pham <terminaut@gmail.com>
To: classicrendezvous@bikelist.org
Subject: Re: [CR]Odd Campagnolo cranks for the experts...
In-Reply-To: <BAYC1-PASMTP01D8D2081FF787C5666909CE080@CEZ.ICE>
References: <43DE9448.16D5F9A2@earthlink.net>


I can see some semblance to the Gipiemmes, but I think these cranks still have more material than those in the photo. Also, the soft edges on the spider are the result of what looks to be hand-filing to round them out, with no polishing to finish off the job. It's somewhat evident in this photo (you can see the file marks):

http://chainedrevolution.com/CS/photos/general/images/72/original.aspx

Is there a way to test the cranks for whether they're melt-forged or cold forged?

This has been interesting in that there's no obvious answer as of yet. I just sent off an email to Campagnolo via their website to see if they would care to share any thoughts.

I got the cranks for virtually free so there's no loss if they're "fakes".... and their conversation-piece value has been very high so I thin k I've already recouped my costs. :-)

Tam Pham Huntington Beach, CA

On 1/30/06, David Bilenkey <dbilenkey@sympatico.ca> wrote:
>
> Nope they aren't even that. I can give you an image for every crank made
> beyond the CR cut-off date, and these wouldn't be in there. I'd put
> money on
> these being Ofmega or possibly Gipiemme. They bear striking resemblance
> in
> form to the Gipiemme Sprint cranks:
>
> http://www.classicrendezvous.com/Italy/Gipiemme_Spint_grp.htm
>
> http://cgi.ebay.ca/ws/eBayISAPI.dll?ViewItem&item=7211951695
>
> The big kicker is these cranks appear to be melt-forged as opposed to
> cold-forged. A sure sign of a lower end crank. A detail that is
> consistent
> with melt-forged arms is the larger section at the square taper, to
> account
> for the lower strength of the melt-forging vs. a cold-forging. Also
> consistent is the soft edges on the spider arms, as the casting is
> crudely
> polished.
>
> And for Paul, no they also aren't Victory or Triomphe. I own some of
> those
> and have images, and these are neither. Actually the finish on Victory
> and
> Triomphe arms is superb.
>
> David
> --
> David Bilenkey
> Ottawa, Ontario, Canada
> dbilenkey@sympatico.ca
>
>
> > -----Original Message-----
> > From: classicrendezvous-bounces@bikelist.org
> > [mailto:classicrendezvous-bounces@bikelist.org] On Behalf Of
> > John Jorgensen
> > Sent: Monday, January 30, 2006 5:34 PM
> > To: classicrendezvous@bikelist.org
> > Subject: [CR]Odd Campagnolo cranks for the experts...
> >
> >
> > They don't look fake but second or third tier from the post
> > Tullio era.
> > C Record, Croce D' .. Chorus, etc. time frame...
> > Therefore beyond topic.
> >
> >
> >
> > John Jorgnsen
> > Torrance Ca