Can someone tell me what happened?
I was riding my hybrid up a very steep hill, using my small chain ring and a 22-tooth cog. I shifted to the 26-tooth cog but lost too much momentum and had to quickly shift to the 34-tooth cog. The chain over-shifted the cog and wedged behind it; it was no fun to be unclipping as I rolled backward.
At first I wondered if my limiting screw needed adjusting, but the chain shifted in and out of the large cog perfectly during the rest of the ride. I couldn't make it over-shift. Did I flex my wheel enough to make the chain over-shift, or will a poorly adjusted limiting screw affect shifting only under certain conditions?