Originally Posted by
Retro Grouch
Price is right. If it doesn't work you can always spend the money for a commercial spacer set but part of the fun of this kind of project is doing it without spending any money. I'd also use one of my current chainrings and the existing chain. The cheap, dirty solution, of course, is to just leave the unused cogs in place.
Ah. I think you understand the goal here. I was just thinking that I do have a single ring on my rain bike which is 1x7, and I could swap my double with it and use just one of the rings there, and avoid buying a new chainring. At least right away. With a pvc (or whatever) spacer and rigging up a tensioner I'd be out nothing at all on the project. I could always use the whole cluster if I can't make a spacer work.