My Litespeed Tachyon, a 1996 model, of which I am the second owner, (So Litespeed will not honour the warranty) has now developed its 3rd crack.
First was in the seat tube above the deraullier and I got that welded successfully in 2005 and have been riding it ever since.
Turns out the bottom bracket, and the right side of the rear stays have developed cracks.
I am trying to find a welder in New Jersey who will weld Ti, and will probably try it, since they charge about $50-100 to do it. (My big delay is that I have to take off the chain ring for him to get at it, and I keep forgetting to bring my crank puller to remove the chain ring off the bottom bracket.)
Anyone else done this? My first experience worked pretty well. Trying to decide if I should do it again. I am too cheap to buy a new Ti bike, and I have to say, I love Ti as a frame, and am completely happy with the bike otherwise.
(I have now cracked a Ti seat rail, a seat tube, a Ti front stem (twice!), and now two more places on my Ti frame. Perhaps there is a hint here. I am a big guy, but this is Ti! It is strong stuff!)