NR triple bb's were always equipped with thin-wall cups, like early Chorus
or Victory cups. I have never tried to find out why--maybe Campy thought
that the proportion of right hand end length to bearing race spacing would
be better than with thicker cups and closer-set bearing tracks?
DF
----------
>From: Monkeyman <monkey37@bluemarble.net>
>To: classicrendezvous@bikelist.org, hayesbikes@nls.net
>Subject: Re: [CR]bb compatiblity question
>Date: Wed, Dec 20, 2000, 11:50 AM
>
>>I am attempting to rig up NR bottom bracket Italian cups with a NR triple
>>spindle marked "68" that would normally go with an English threaded bb. I
>>can't get it to work: the adjustable cup doesn't go in far enough to
>>eliminate the wobble in the spindle.
>. . . (SNIP). . .
>>Any help? Are NR triple spindles compatible with Italian cups readily
>>available? Or would I just be better off to get some Italian rings for
>>Phil Wood and work it that way?
>
>
>This is the standard problem of using a spindle that is designed to be used
>in a 68mm BB shell on an Italian BB shell that's 70mm. Sometimes you can
>do this if you don't mind only a couple threads used for the lockring.
>Another thing that may be happening is you might be using a spindle
>designed for "thick" cups with "thin" cups. Other list members will be
>able to tell you what models and years the "thick" vs. "thin" cups
>happened. Campy did make Italian triple BB's because I have one for my
>Euclid crank and I've seen older 70-SSx3 spindles. The "68" or "70"
>designates the BB shell width.
>
>enjoy,
>Brandon"monkeyman"Ives
>
>
>Brandon and Mitzi's-- "Wurld uv Wunder"
>http://darkwing.uoregon.edu/~capybara/
>
>Monkeyman's on going bicycle part garage sale
>http://www.uweb.ucsb.edu/~mkirklan/salepage/garage.html
>
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