do people build up Ti bikes as singlespeeds
i've always wanted to build up a good bike. i don't have the $$$ to upgrade everything at once, so i wanted to get a decent frameset and place a single speed on it and build up from there at my leisure (who knows - maybe i'd want to keep it that way)
can you put any tooth cog on the back? a 15 for example?
this may be an obvious question but i really don't know.