I'll be in Rome, with the Tikit, until January 15. Will try to post some from there about various bike issues. Yes, I know Rome isn't the most bike friendly of cities -- though it's got a brand new long bike trail right along the Tiber.
Here's a start: I packed the Tikit in my lime green Samsonite F'lite 31". Getting the tikit into the case is pretty easy. Getting the tikit, plus bigger tires (Scorchers), fenders, rear rack, helmet, and various sundries is not so easy. Eventually figured out how to do it but it's a fairly tight fit. You have to remove the fenders AND the rear rack, and deflate the Scorchers to make room. The bike and stuff comes to about 47 pounds including the case.