My recollection of Tenax, from a Bicycling article, matches Don's. It was essentially the same as SP. Not seamed, double butted with maybe slightly looser quality control.
Doug Van Cleve Chandler, AZ
On Sun, 20 Mar 2005 16:11:12 -0800 (PST), Donald Gillies
<gillies@cs.ubc.ca> wrote:
>
> Gawk! I mean Columbus SP tubing, not SLP tubing.
>
> - Don Gillies
> San Diego, CA