Euan wrote:First link appears to be borked.
On the second, why titanium? Or is it more that it's a respected builder?
On the first, try http://www.xacd.com.cn/product.asp?rootcl=1 then. Forgot the .cn.
On the second... why not?
Stronger than steel, lighter than steel, non-corroding...
For mine, the only reasons not to use titanium for just about any metal structure is that it's horribly expensive, and horribly difficult to work (leading to being even more expensive).
That changes somewhat when the frame builders in China's "titanium city" start offering one-off frame fabrication, to your own design, for an affordable price.
Xi'An is where a significant proportion of the world's titanium stuff comes from, including many bicycle frames that get more reputable brand logos added to them.
There's a lot of "buyer beware" in getting such a thing done. There are threads on many other forums tell people's stories. Materials and manufacturing quality are acceptable to good; the main "problem" is that they build exactly what you ask for, so if you ask for the wrong thing, you get the wrong thing. Which includes speccing a frame that's not strong enough, or that has inherent manufacturability issues (I've read of a few that have had a long head tube deformed by thermal effects of welding on a fat downtube).
But, like I said, I like doing things the hard way. As I've mentioned before, there's a custom titanium frame planned for my next significant birthday in 2.5 years.
But that's off topic, and doesn't help the OP spend his TAC money.