Originally Posted by AMoney

I have a set of racing and training wheels for my road bike. Now that the road season has ended I put the rear training wheel back on. Both wheels have the same cassette and ratio. A problem I'm having is that the chain isn't working well in the easiest gear in the back but it's working well in all the other gears. When I first put the racing wheel on, I had the opposite problem; the chain didn't work well in the hardest gear. I did adjust the tension, and that helped somewhat. However, I think I need to adjust one of the derailleur screws. Which screw do I need to adjust, and in which direction?