Doug Fattic wrote:
> I still have some of that aero tubing gathering dust in my inventory of
> framebuilding materials. One of the big problems was that because they were
> so squished, they didn't have any side to side strength. To make up for
> this, they added thickness to the walls and that of course added weight.
> These were heavy tubes!
IIRC, the Columbus Aero down tube had a second (round) tube inserted inside to provide additional bracing. :-)
--
John (john@os2.dhs.org)
Appleton WI USA