If you saw the other thread you know how frustrating it was... well, it's been 1,000 miles now and the noise has not returned. And, I was able to replicate & correct the problem on the OTHER side of the car.

I hereby decree that in some cars, including mine, that mystery comes from a loose caliper bolt. It looks tight, feels tight, but is NOT tight -- hence the banging.

Test by rolling over a 1/2" bump at 10mph. If you hear clanking, that's probably it. Then, apply a feather of brake pressure - if the clank goes away, that's confirmation. Now try one front wheel at a time to determine which side is loose.

Good luck!