I spent a good part of this afternoon practicing my trackstand. All this time I was putting a fair amount of weight on my handlebars. I've got a threaded headset w/ a quill stem. When I was finished I realized is that turning the handlebars resulted in a creaking/low clicking noise. Pressing down on the handlebars also produced a creaking/clicking noise; it takes a little bit of force of course. I just CANT find out where this noise is coming from!
I've tried loosening the headset a bit, and then tightening it up again. I've tried tightening the stem. I've tried tightening the place where the stem clamps onto the handlebars. I've tightened the quick release on the front wheel. I took the quill stem out, stared at it for a second having no idea what to do, and then put it back in.
What's the matter with my bike?