I have not the timeline but I have a book from 1989 that mentions the Regina Superleggera with hollow pins. It also states that even a lighter chain made of titanium was available back then. But no brand name is given.
Dirk
-- Dirk Feeken Heidelberg Germany
-----Original Message----- From: Questor [mailto:questor@cinci.rr.com] Sent: Sonntag, 21. April 2002 20:11 To: classicrendezvous Subject: [CR]Regina SL chain timeline?
I recently purchased a Regina SL hollow chain and I am seeking more info
since Regina bicycle chains are no longer marketed by
...
The following BikePro URL hints the SL chain series was made in the early
1990s.
http://www.bikepro.com/