Hi All,

My carbon fiber road bike has developed popping and knocking sounds that are driving me crazy. I've looked the frame over and don't see any cracks and the bike rides and shifts smoothly. Here's what I've checked/done so far:

1. Tightened chainring bolts.
2. Cleaned seatpost and seat, greased seatpost rails, seatpost bolts, and seatpost collar bolts (Thomson seatpost and collar).
3. Checked bottom bracket and headset for play by rocking back and forth.
4. Squeezed spokes to check for looseness.
5. Removed, cleaned, reinstalled cassette.
6. Greased and reinstalled bottle cage bolts.

Everything looks good as far as I can tell. Prior to this there had been an intermittent clicking when seated with each pedal stroke that is now gone and apparently morphed into this much louder sound. It's the worst when pedaling slowly under load. Less frequent when out of the saddle or coasting (but still happens), but doesn't seem to happen when coasting downhill at speed. If anyone has a clue or suggestion I would appreciate it. The LBS is 1.5 weeks out on repairs so it's much if I can sort it out myself.

Chris