Hi All,
Not sure if this has been mentioned in the comments by others but, My experience was drivi g me nuts, did all the things you would think to eliminate an annoying click, BB out greased, Crank arms, Seat/ seat post, Headset all removed and cleaned, even removed front skewer and greased but all to no avail. I would have bet money it was the bottom bracket, Then last week had a rear puncture so removed rear wheel replaced tube put wheel back on, hey presto!!! Totally silent bike all the way home, 200 miles later still total silence, no more embarrassing hill climbing, My point is I was TOTALLY convinced it was the Crank/bottom bracket so really need to check ALL areas,
Just hope this experience will help someone.