Ok, please stop those cards and letters with my :-) posting. I got my head handed to me because I incorrectly stated that heat-treating increases tubing stiffness (the stiffness of all steels is roughly constant.)
I do think it's possible, though, over the long term, for a reynolds 753 frame, with thermal input at room temperature, to loses some of its heat-treated properties, that was the main point of my message.
- Don Gillies
San Diego, cA, USA