Good thread, I've always rented when on the road - easy enough to bring shoes, pedals, helmet and a pack. However it is tempting to bring something along at times to have your own steed. Rentals & demos can certainly be a mixed bag. Buddy of mine of is keeping his folding bike at a Paris bike shop for the summer so that's handy. I know a number of our crews have bikes in AMS and other places, handy if you could snag the same overnights enough I guess.