All that I read on posts is mostly about creaks. I fixed those long ago. I have a random Tink noise on a power stroke on either chaining on the lower (big) gears on the cassette. Quiet when not pedaling. Sitting or standing. It comes and goes depending on......? I run a 50/34 Praxis Works chain ring set.. Fuji 1.1D, aluminum frame. @1500mi on the bike. I have read some great posts, done a bunch of troubleshooting-no luck. "I get" sound resonates on an aluminum frame, but strongly feel this being a drive train issue- probably means I'm wrong. My latest guess is that the chain rings are flexing. I did indeed lube and adjust the chainring bolts and contact with the spider. I am not getting a derailleur rub either. The noise is a Tink sound not a creak. Any ideas?