Re: [CR]Campagnolo BB cups--which ones to use?

(Example: Framebuilding:Tubing)

Date: Thu, 28 Dec 2006 15:58:48 -0800 (PST)
From: "Fred Rafael Rednor" <fred_rednor@yahoo.com>
Subject: Re: [CR]Campagnolo BB cups--which ones to use?
To: "Ted E. Baer" <wickedsky@sbcglobal.net>, classicrendezvous@bikelist.org
In-Reply-To: <828673.31126.qm@web80612.mail.yahoo.com>


Ted,

Measure the spindle's bearing races, from shoulder to shoulder. For Italian spindles, if the distance is 51 or 52 mm, you need thick cups. If it's 56 or 57 mm (maybe even 55, depending on how you measure), you need thin cups.

Now I have a question: I _think_ I've seen thick-style Campagnolo BB cups that were made without the rifling. These would have to be Record, rather than Nuovo Record. Did those really exist, or was I looking at cups from someone like Galli Miche or Ofmega?
     Fred Rednor - Arlington, Virginia, USA


--- "Ted E. Baer" wrote:


>
> I am working on an old Italian bicycle--an Olmo
> Deluxe. I'm guessing it's from about 1961. I bought
> it quite a while ago and removed the chainset and
> BB...........(for reasons unbeknown to me now.)
>
> Anyhow, I am trying to fit the bike with one of my
> older used Campagnolo BB's. The bike is of course
> Italian and I double checked with a caliper that the
> BB shell width is indeed 70mm end to end. That said,
> I rooted through my old spindles and found a decent
> Campagnolo Record spindle engraved "70-SS."
>
> Given that there is not a "120" stamped to the right
> of the "SS" I thought I better consult my Sutherland's
> Fifth Edition handbook as to which cups I should
> use--Thick rifled style OR Thin standard style with
> the 70-SS marked spindle. There is page after page of
> charts and I can hardly make sense of any of this. It
> looks as if the thick and thin cup
> substitutions/factors may have something to do with
> chainline.
>
> My question: How does one determine which cups (thick
> or thin) are correct for use with this spindle in the
> old bicycle?
>
> I checked the archives by typing in "Campagnolo BB
> cups" but only about five posts came up.
>
> Don't everybody answer at once now..........
>
> Ted Baer
> Palo Alto, CA

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