For real. The more you look at titanium, the less sense it makes for any part of a bicycle. There are a couple of places where you can use Ti directly to replace steel because you can't reasonably change the dimensions but the steel part is much stronger and/or stiffer than it needs to be, but if you have a free hand then all the really good things about Ti don't really apply to bicycles, unless you routinely wash your bicycle with hot concentrated acid.
For real. The more you look at titanium, the less sense it makes for any part of a bicycle. There are a couple of places where you can use Ti directly to replace steel because you can't reasonably change the dimensions but the steel part is much stronger and/or stiffer than it needs to be, but if you have a free hand then all the really good things about Ti don't really apply to bicycles, unless you routinely wash your bicycle with hot concentrated acid.