I have a converted schwinn traveler as well. It is an older model with a one piece crank. I just removed the outside ring and it gave a good chainline. I can see why someone wouldn't want this kind of bike but I find it rides beautifully. A heavier bike has some benefits if you're not riding competitively, particularly if you live in a hilly area. It will make you stronger. Nobody walks into a gym looking for the lightest barbell they can lift right?