Today I noticed that when I pedal, my bike (I think somewhere in the crank or drivechain area) makes a clicking noise. The click occurs once per revolution of the pedals, when my right foot is near the bottom of the pedal stroke. I tried lifting up the rear wheel and spinning the pedals by hand to try to locate where the clicking was from, but it did not make the noise then. I think it only clicks when I am putting significant pressure on the pedal, because I also do not hear it when I pedal very lightly. The bike has been ridden only about 200 miles since last time it was lubed/tuned up.
Sorry for the lack of information, but I tried to include everything I could remember that seems relevant. Can anyone point me towards what part of my bike I should be looking at? I would like to take care of this myself if possible.
Thanks in advance!