More feedback on mystery noises.
Reading your tech column about ticking noises coming from the “bottom bracket” area brings back memories of solving mysterious noises on a customer’s titanium frame about 15 years ago. This customer brought in his Sandvik-made Ti frame with the mysterious noise. He was sure it was the bottom bracket. That’s what we thought too.
Removal of the bottom bracket, grease-on-threads, nice tight reinstall and noise problem solved? At least in the parking lot it was. After a long ride, he was back. A Phil Wood bottom bracket replacing the Shimano UN-50 and problem solved – in the parking lot. He was back. After spending a lot of time trying different things, I tightened the riveted-in water bottle bosses and problem solved!