I suffered a bike accident two weeks ago. A big cat and a Pace Line were the cause.
Anyway, I took a beating which is healing slowly but more important the bike developed a clicking sound. this can seriously detract from your biking experience. I studied this noise very closely and it seemed to be every revolution of the crank but not for sure.
There are two LBS in this area of Florida. One declined the opportunity to be of service and claimed ignorance. The other one is a Treck certified LBS. They replaced every suspect part and bearing and chain and cassette and derailleur. No dice. Clicking was still there.
What is it?
In desperation we pulled the Crank shaft and gears and replaced it.
Problem solved. The shaft was bend very slightly.