This may not be a touring bike question. I do however really respect the opinions of the touring bike community here.
So I have a few tours under my belt. I own a a pretty standard LHT with most of the Surly factory components. I'm planning an upcoming trip where most of my traveling will be done by planes, trains, and automobiles. I want a bike that will break down fast and will be light.
Here's the tricky part. I don't really want a traditional touring set up. I think I'd rather emphasize quick building up and breaking down. I think I'd be comfortable with a single speed, possibly even fixed gear set up. I want to minimize the number of cables, levers, and general moving parts.
I'm playing with the idea of either doing a fixed gear bike or possibly an internal rear braking system. I'm also playing with the idea of using a Schlumpf High Speed drive for two radically different gear ratios instead of going single speed.
So here's more or less what I'd want:
Reasonably Stiff Titanium frame (since I'll be lugging this thing around while disassembled) with S&S couplings and a horizontal rear drop out.
Either fixed gear with only front brakes. (Keep in mind this bike will only be used for short day trips and urban riding in between being boxed up.) OR a Schlumpf drive, free wheel, coaster brake.
Where do I go for the frame? Is this a feasible set up? Am I committing some glaring errors in my thinking?