Bike Friday NWT. A little out of your price range with a full travel case and trailer, but the only bike you ever need. Fold it and store it under your desk or hotel room so won't get stolen. Made in the USA. Packs into a ordinary suitcase so I've never paid an extra airline fee, and if you're brave you can assemble it at the airport and ride out (I've never done that, but it's possible.) As fast as your touring bike, normally I can cruise at 18-19mph on mine.