im of the impression that at some point there were even more variations on threads for both track lockrings and cogs as well - ive had cogs that fit nicely on a set of older campy hubs but wouldnt even start on an airlite, or even and fb for that matter! the age of complete non-standardization is still not that far in our past... :)
-joel
> I was busy looking at the Rydjor collection, so Ben Sanford
>beat me to the reply, but here's an excellent page of specifications
>for track bikes: http://www.businesscycles.com/
>
>Roy "out in the rain yesterday" Drinkwater
>Lititz, "winter's coming" PA
>
>
>Ben Sanford replied:
>>33.5 mm x 24 tpi left-hand thread ( Campagnolo compatible ) - which is also
>>used by Phil Wood, and a few other manufacturers.
>>
>>1.29" x 24 tpi, which is used by Shimano, Suntour, Suzue, Hed, Corima. This
>>threading was also for the '80's Japanese "Sunshine" hubs which where a copy
>>of the Campy hubs in most respects except they didn't use Campy's threading.
>>
>>Since 33.5 mm is 1.319", the Campy rings will fit (loosely) over the lockring
>>threading on the Non-Campy sized hubs.
>_______________________________________________
--
joel metz : magpie@messengers.org : http://www.blackbirdsf.org/
bike messengers worldwide : ifbma : http://www.messengers.org/
po box 191443 san francisco ca 94119-1443 usa
==
i know what innocence looks like - and it wasn't there,
after she got that bicycle...