[CR] 80s Bianchi Seat Stay question

Example: Framebuilders:Norman Taylor

From: Emilio Bozzie <emiliobozzi@hotmail.com>
To: <classicrendezvous@bikelist.org>
Date: Sat, 9 May 2009 21:47:24 -0700
In-Reply-To: <bd1.538a393f.37377e55@aol.com>
Subject: [CR] 80s Bianchi Seat Stay question

I was crusing the CR site when I saw the webmaster's 83 Specialissima.

I noticed the round cross-section of the seat-stays.

The 83 X-3 and a couple of later models (Mondiale, etc.) I have seen have an oval or almost a rounded corner rectangular cross-section instead of the round type.

I do not know what the Centenario has, although I am aware that it is a really souped-up X-3. Yes, i also understand that 85 is beyond the 83 CR cut-off, but also was aware that the Centenario was once a very praised bike here on the CR list.

But I digress... does any one know if there are any other pre-85 models that have this seat-stay arrangement?

Or better yet, are there any other manufacturers out there, i.e. Colnago, that used this tubing as well?

I know this tubing is not common, but did not imagine it was proprietary to Bianchi.
Nels Cone
Seattle WA