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.