I have an ultra light 2 piece, 6'4" St. Croix Trout series rod and occasionally when I am trout fishing I will hook a bass. I have not had any problem with it overbending, with the 2 piece connection or anything else. I'm always careful with that rod, to begin with because it feels so light compared to my Dobyns bass rods.
You should be fine with using something light and 2 piece for travel