Crank Noise

When I get noises in my crankset, it usually means it's time to break it all down and clean and lube everything.

One adage says that if you hear it on only one side it's probably a pedal; if you hear it on both downstrokes, it's probably BB/crank. Tighten down your crankarms first, and if that doesn't cure it, do as NYrr496 advises: pull it, clean it, grease it, and re-install.