Up until recently I was getting quite a bit of noise from the crank/BB area on my road bike. I pulled out the square-taper BB and found it to be a cheap piece of junk that felt pretty rough when turning the spindle.

So I replaced that with a new BB, but I'm still getting an occasional pop/click sound while riding. I was hoping it wasn't the new BB, so I swapped out my Shimano PD-A530 platform/SPD pedals with the Wellgo platforms on my wife's bike. Rode a few miles and didn't hear any pops. So apparently it's the pedals.

Upon close inspection I cannot feel any play in the pedal spindles. They have just over 2,000 miles on them. Surely they wouldn't be bad already??

When I first got the A530's I actually sent them back within a week because one pedal did have some visible play in the spindle, so my current set is the replacement that I have been using since August of last year.

Try removing the pedals, thoroughly cleaning the pedal and crank threads and mating surfaces, greasing and re-torquing them and see if your clicks go away.

I am not sure whether your pedals are serviceable; if they are you might consider opening them up. I have found that in general pedals come from the factory skimpily lubricated and the bearings too tight.

ugh, turns out it was the BB. Sounds completely shot, like it's seriously about to break, after less than 4 months and 1,200 miles on it. Never used in the rain, not even once.

Sucks.