In a message dated 10/14/2002 1:33:33 PM Eastern Daylight Time, jim@alandavid.com writes:
<< If a Columbus or Reynolds steel frameset that originally had rear spacing at 120 mm was cold set to 126 mm would it be ok to have it re-set back to 120 mm or best to keep it at the new dimension of 126 mm? >>
This reminds me...
I heard recently that attendees at the Velo Rendezvous were talking about how those bare :Cinelli-made" frame sold by Matteo Brandi (sp?) were not much use with modern parts because they were 120 spacing and it was a bad idea to set at 126 or 130... Bologna! The total difference between 120 and 126 is 6 mm right?.....then half that, per side, is 3 mm each, right? That's is nothing.. A brass or silver brazed frame can easily be set to either with minimal to zero affect on the frame.
You do have to be very careful to set it correctly so the frame remains symmetric. That is the same amount of change on each side.
A Campy straight edge tool is very useful here. Remove the bb (or at least the bb axle if it's an old cup and cone unit).. Clamp the frame in a vise (clamping the lower part of the BB or bb cup) with brass jaw protectors and gently bend the stays in or out using the Campy straight edge to determine how far each side is progressing. Lay the straight edge along the face of the BB or BB cup and up inside the dropout. Measure the gap between the straight edge and the inner dropout face Finish up the job with Campy H tools to align the dropouts themselves.
Dale Brown cycles de ORO, Inc. 1410 Mill Street Greensboro, North Carolina USA 27408 336-274-5959 Fax 336-274-6360 <A HREF="http://www.cyclesdeoro.com">cyclesdeORO.com</A> <A HREF="http://www.classicrendezvous.com/main.htm">Classic Rendezvous</A>