Fred,
I think I did use a 68-SS which put the crank out to the right a bit (+1.5m m?). No quarrel with your approach at all!
Roman Stankus Atlanta, Georgia USA
-----Original Message-----
>From: Fred Rafael Rednor <fred_rednor@yahoo.com>
>Sent: Sep 21, 2006 12:32 PM
>To: classicrendezvous@bikelist.org
>Subject: Re: [CR]69mm BB?
>
>Roman,
> Understood. But Marcus seems to have a 69mm BB shell. In
>the past, my experience with that sort of situation was to use
>a 1mm spacer on the fixed cup side. Of course, it is still
>possible that a spindle meant for a 68mm BB will fit, if the
>lock ring isn't too thick.
> A different, recent CR list posting sent me to "the dungeon"
>to measure some Campagnolo - and a couple of Suntour Mighty -
>BB spindles. I actually found a couple of parts, marked 68-SS
>(or something like 68-MW in the case of Suntour) that were a
>bit wider between the bearing race shoulders than the other 68
>spindles. Perhaps _that_ is what you're supposed to use with
>this BB.
> Note that this is something other than the differences found
>between spindles meant for thick cup or thin cup bottom
>brackets. So please don't bring that into the discussion, it
>will just confuse things. Although it might be worth noting
>that some of the odd mixes of pieces that have worked well for
>people might be due to the accidental discovery of
>out-of-specification parts.
> Cheers,
> Fred "hors spécifications" Rednor - Arlington, Virginia (USA)
>
>--- Roman Stankus <rstankus@mindspring.com> wrote:
>
>> Fred and Marcus,
>>
>> A 70 may indeed be the proper way to go - but I have an early
>> 60's that I aquired on ebay in the past year that came to me
>> as a bare frame with a 68mm BB width. I assumed that over the
>> years, it had one or two too many facings but who knows. I
>> installed a 68 mm BB axle and all is fine with chainlines and
>> shifting and rides great. It's was repainted in the
>> early/mid 70's. I ride it with improper NR gear that goes
>> with the vintage of the repaint. I'm not sure I could stand
>> to restore it - then I'd have to track down all the old bits
>> - perhaps if I get a little more cumpulsive.......
>>
>> Roman Stankus
>> Atlanta, Georgia USA
>>
>>
>> -----Original Message-----
>> >From: Fred Rafael Rednor <fred_rednor@yahoo.com>
>> >Sent: Sep 21, 2006 11:01 AM
>> >To: marcus.e.helman@gm.com, classicrendezvous@bikelist.org
>> >Subject: Re: [CR]69mm BB?
>> >
>> >Marcus,
>> > Use a 70mm spindle. Assuming that this thing has Italian
>> >threading, that's what the make expected you to do anyway.
>> If
>> >it helps with th chainline, you might consider using a 1mm
>> >spacer between the fixed cup and the BB shell. In fact,
>> there
>> >seem to hae been a couple of BB shell manufacturers who
>> >expected you to use a fixed cup spacer. (Or some extremely
>> >zealous mechanics facing the shells...)
>> > Good luck,
>> > Fred Rednor - Arlington, Virginia (USA)
>> >
>> >--- marcus.e.helman@gm.com wrote:
>> >
>> >>
>> >> I just measured the BB of my '68ish Cinelli, and got 69mm,
>> >> right between
>> >> the standard widths of 68 and 70. There is a Japanese BB
>> in
>> >> there now. I
>> >> am thinking about replacing it. Should I use a spindle
>> for a
>> >> 68mm BB or a
>> >> 70mm BB? I care about Q factor, but I think that if I use
>> a
>> >> 68, I run the
>> >> risk that the adjustable cup will go too far into the BB
>> >> shell, and there
>> >> will be nothing for the lockring to grab onto. Italian
>> >> standard appears to
>> >> be 70mm too.
>> >>
>> >> Have I missed anything?
>> >>
>> >> Is there any difference between pre-CPSC Campagnolo and
>> >> post-CPSC
>> >> Campagnolo? If so, are the parts marked differently? I
>> have
>> >> looked at
>> >> some catalogs online, and I don't see any difference.
>> >>
>> >> Best regards,
>> >> Marcus Helman
>> >> Huntington Woods, Michigan
>> >> USA
>> >>
>> >>
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