You may think it's worth saving the $$$ but it's not. If you damage a wheel you can't ride either of your bikes...think about that for a minute. You can set up both bikes to work with the one wheel set so you won't ever need to adjust anything, it's not like having one bike w/ 2 sets of wheels. It's stupid easy, so that's not an issue. The only problem would be if you damaged a wheel and couldn't ride at all.