So my Dumpster Queen 1983 Raleigh Marathon has been great since pulling her out the dumpster, but I kind of felt a tick every so often, maybe every third of fourth crank rotation. I figured it was the chain, but hey, they bike's old, who cares, right?
Yesterday, it got much, much more distinct. Not so much a tick, but more of a clunk. No crank jump or anything, but you could hear it and feel it.
So last night I pulled the chain off my Nishiki Olympic 12 (which was very lightly ridden before I wrecked it last year) and put that on the Marathon. Today's commute was like floating on air. No more clunk!