I am not sure of the question here, and looked and could not find any paper to back it up, but I seem to remember a sew-up tire made that would fit a clincher rim. I am not sure if it was for 700C or 27".
If it happened, it was in the 80s sometime. I seem to remember a blurb in Bicycling about it, and was not able to find it.
Steven M. Johnson, Chesapeake, VA http://members.home.com/grisha1/index.htm
On Fri, 16 Feb 2001 21:32:26 -0800 Joseph Bender-Zanoni
> Never to my knowledge. Sew up rims from the 1890s have the same
> diameter as today. The old large diameter tires are labeled 28". The
> have stayed the same but the tire diameter has shrunk to the point
> that 28" doesn't make sense.
> At 07:42 PM 2/16/01 -0500, Steve Freides wrote:
> >Were there, and are there, rims and tires in 27" as opposed to