Re: [CR]Now: Oversize BB Cups Was:Suntour Superbe front der

(Example: Production Builders:Frejus)

Date: Sun, 30 Dec 2001 17:21:36 -0800
From: "Jim Allen" <jimallen@nctimes.net>
To: Marc Boral <mbikealive@earthlink.net>
Cc: classicrendezvous@bikelist.org
Subject: Re: [CR]Now: Oversize BB Cups Was:Suntour Superbe front der
References: <002301c19087$1bb02d40$719afea9@chasds> <044c01c19097$9fddcfe0$efddfea9@mooshome> <3C2E19B9.C20794AA@prodigy.net> <001101c190e7$f47a85c0$719afea9@chasds> <3C2E9880.B7783F71@earthlink.net> <3C2E9F6C.000001.03228@bedroom> <04d301c1914f$dfb68810$efddfea9@mooshome> <3C2F4BEE.000001.00244@bedroom>


Masi in Carlsbad had a multifunction lathe like machine. One of the functions was tapping bottom brackets. The tap that came with the "Bike Machinery" machine for tapping has an expanding tap.

Looks and functions just like an adjustable reamer.

Betcha I could go oversize with that!

I seem to remember that the Italians suggested getting oversize cups for some framesets that they sent us. We sent them back and suggested that the try again....

Might be one of the reasons Alberto didn't like us!

Later, Jim

Marc Boral wrote:
> That's the bewildering thing about this Campy product. Campy never made an
> oversized tap. I remember researching this about 8 years ago. I couldn't
> find any manufacturer (Var, Cobra, Cycle, Silvan, Park, etc.) that made/had
> ever made oversized taps. A likely conclusion might be that the OS cups
> would simply replace standard cups in a bb shell that has become a very
> sloppy fit for whatever reason. But OS cups are still too large to be
> screwed all the way into a sloppy bb shell. I too, am still perplexed on
> Campy's mindset on how OS cups were to be used.
>
>
>
> Marc Boral
>
> Long Beach, CA
>
>
>
> -------Original Message-------
>
>
>
> From: Jerry & Liz Moos
>
> Date: Sunday, December 30, 2001 8:34:37 AM
>
> To: Marc Boral
>
> Cc: classicrendezvous@bikelist.org
>
> Subject: Re: [CR]Now: Oversize BB Cups Was:Suntour Superbe front der
>
>
>
> Just when I thought I'd heard of everything, someone one this list comes up
>
> with something I never imagined existed. What was the purpose of the OS
>
> cups? Were they to allow a damaged BB to be retapped to a larger diameter?
>
> If so, there must have been a standard tap size with which such cups were
>
> used. Did Campy make such taps? Did anyone else?
>
>
>
> Regards,
>
>
>
> Jerry Moos
>
> in Houston, TX
>
>
>
> ----- Original Message -----
>
> From: "Marc Boral" &lt;mbikealive@mail.earthlink.net>
>
> Cc: &lt;classicrendezvous@bikelist.org>
>
> Sent: Saturday, December 29, 2001 11:00 PM
>
> Subject: Re: [CR]Now: Oversize BB Cups Was:Suntour Superbe front der
>
>
>
>
>
> Chuck,
>
>
>
> I seem to remember the OS cups designated with a "5". So an English cup
>
> would read 1.375 instead of 1.370, and an Italian would read 36.5 instead of
>
> 36. I'm not 100% sure on this, maybe I just dreamed it, but I have sold
>
> them in the past, and I still have some here. They're buried so I can't
>
> just grab em to look at.
>
>
>
> Attn: Andrew Gills. I know you have/had some OS cups. Can you take a look
>
> at yours and shed some light?
>
>
>
> Marc Boral
>
> Long Beach, CA
>
>
>
> -------Original Message-------
>
>
>
> From: chuckschmidt@earthlink.net
>
> Date: Saturday, December 29, 2001 8:31:16 PM
>
> Cc: classicrendezvous@bikelist.org
>
> Subject: [CR]Now: Oversize BB Cups Was:Suntour Superbe front der
>
>
>
> "C. Andrews" wrote:
>
>> (Cut) Just tell
>
>> me one thing: why in the name of heaven does a standard
>
>> british-threaded adjustable cup thread easily into my
>
>> Rivendell, but a british threaded Campagnolo thin cup (for
>
>> the triple cranks), absolutely refuses to go in?
>
>
>
>
>
>
> Campagnolo made regular and oversize threaded cups. You probably have
>
> the oversize cups. They are not marked in any way; you have to measure
>
> them to identify them (or try to thread them into a normal threaded
>
> bottom bracket :)
>
>
>
> Chuck Schmidt
>
> South Pasadena, Southern California
>
> http://www.velo-retro.com (only a few more days to take advantage of the
>
> December discount)
>
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