Originally Posted by Daytrip

Alright, that's the kind of information I was looking for. Will I need a new BB if I get a standard double? I think the 105 triple crank has a spacer that you put on but that isn't needed if the crank is a double (same installation sheet, as I recall).

That raises another couple of questions: If I take out the spacer, will it bring the big ring into the center? And if so, will I have cross chaining issues with the smaller cog?

To be honest, back when I had a functioning triple, I rarely got off the center cog anyway. And that's still where I spend most of my time.