As the super content owner of a Salsa Vaya I will throw it out there that Salsa does make the Vaya in titanium if you can budget that. I simply LOVE my Vaya. Most comfortable bike ever and even though it's not a light weight it still has a lot of pep. I didn't try to build mine up light. It's more utility than anything but I find it's still my favorite bike of any I have owned. If I could change anything about it I would have bought the frame in titanium but the price wasnt an option at the time. Maybe in the future :-)