As best as I can remember the Tenax was a seamed tubing and was used in the mid to late 80`s. It did not ride as nice as SL or SP but felt kind of "thunky". I do not know for sure if it was butted.
Karen Rawls Windychester VA
On Sun, 20 Mar 2005 18:15:52 -0500, Bianca Pratorius
<biankita@earthlink.net> wrote:
> I have done some reading that indicates that Columbus SP tubing, that
> was defective in some minor cosmetic way, made it's way into certain
> manufactures lines under the name Tenax CRMO tubing. If that is the
> case than the Tenax was double butted. What years was this tubing used?
>
> Garth Libre in Miami Shores Fl.