My goodness, WHY? Titanium is a pretty silly material to make a rack out of. You're going on tour, not racing in Le Tour. Your standard aluminum rack by any quality manufacturer IS lightweight but durable. Don't waste your money on titanium novelty racks! It will be neither much stronger nor much lighter than a rack made out of aluminum, or even steel (which is actually harder to find). Get a Blackburn, or a Jandd. You won't be disappointed.