Went for a ride yesterday, and about a mile into it I started hearing a clicking noise. At first I thought it was just the little rocks being kicked up against the bottom of the down tube (this is exactly what it sounded like, I'm sure you've heard this noise if you have a TX). Then I noticed that it was only doing it when I was pedaling. I checked for twigs or anything..nothing. So, I released the rear QR and there was the noise! It did it again when I tightend it too. The noise is comming from the seat stay and the chain stay. Sounds like its only the left side. To recap...A creaking, clicking noise that sounds like pebbles against the down tube (but its not) that only happens when pedaling (somewhat hard) and when I release and tighten the QR you can hear it in the seat and chanstays. What do you guys think?