Originally Posted by TheOtherGuy
Early examples of Ti road bikes were Speedwell & Teledyne. Both made around the mid '70s & a little later. I've got 2 Speedwells, but still looking for a clean Teledyne Titan in my size... You can spot a Teledyne right away by the squeezed section for the shifter clamp on the down tube.
The Speedwell uses tubes the same OD as most steel frames of the day; no crimped areas.
Why are you looking for a Teledyne in your size? I hope not to ride! It's the crimped section on the downtube at the head tube that caused all the failures. Riding one will just break it. And if it happens to have a Ti fork, definitely stay off it! (But the Ti fork would make it even rarer.) A Teledyne would be best for the display case, not with the everyday ridin' sort of bikes.