That Olmo could have the old 74 thin wall BB or just the plain old thin
wall 70.
Don't think they used the thick wall cups for a few years yet. Didn't look
it up, though.
Ted Ernst
Palos Verdes Estates
CA USA
<classicrendezvous@bikelist.org> Sent: Thursday, December 28, 2006 3:58 PM Subject: Re: [CR]Campagnolo BB cups--which ones to use?
> 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" <wickedsky@sbcglobal.net> 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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