Originally Posted by
DrIsotope
Absolutely. It's usually much more noticeable on cassette cogs, as they're much smaller and wear much more quickly. I had a cassette remain in use until it was so worn it make a click that sounded like a bad pedal or a loose cleat-- it was the chain slipping between the teeth on every pedal stroke.
I have that now. I swapped pedals out because I thought that was it. Nope. Probably the cassette. I removed it the other day and cleaned and inspected it, reinstalled and torqued it down. Better, but still there. It has been tough to figure out exactly what the issue is, but most likely it is exactly what you describe. It doesn't do it all the time now. It was doing it all the time on my tour in June, but the bike was fully loaded.