Originally Posted by robertorolfo

The issue: When standing up hard on the pedals in any of the lowest three gears (the titanium gears, 25-23-21), I a slight clicking sound in the three o'clock position of both pedal strokes (which I realize is the most powerful position). It almost sounds like the spokes are pinging a little. And it happens in both the large and small chainrings, but only in those three gears. Now, to rule out other variables, I did the following: the same exact effort in any of the lower gears (the regular steel sprockets) and not a sound. So I'm fairly certain it isn't the wheels, cranks, BB or anything else. And, again, with the Chorus cassette everything ran dead quiet.