Thinking outside the box here...

I'd consider a folding bicycle like a Brompton P6 to be an excellent PDX commuter... if you have never ridden what is considered to be the world's best folder you should really stop by Clever Cycles and talk to Todd and Martina and see about going for a test ride.

They give up nothing to a full sized bike in performance, cost about as much as a Portland, and have some advantages in that you can usually bring them in to buildings with you and if you use the rail for multi modal commutes you won't have to worry about a shortage of bike hooks.

If you are traveling it is compact enough to go on a plane as luggage as it will fit in a standard case.

The P6 is designed for touring... the riding position is very adjustable from upright to much more aero.