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
From: Jerry & Liz Moos Date: Sunday, December 30, 2001 8:34:37 AM To: Marc Boral Cc: email@example.com 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?
Jerry Moos in Houston, TX
----- Original Message ----- From: "Marc Boral" <firstname.lastname@example.org> Cc: <email@example.com> Sent: Saturday, December 29, 2001 11:00 PM Subject: Re: [CR]Now: Oversize BB Cups Was:Suntour Superbe front der
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
From: firstname.lastname@example.org Date: Saturday, December 29, 2001 8:31:16 PM Cc: email@example.com 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)