So I went on slow casual 20 mile ride, mostly because it's raining and I hate riding fast in the rain.
But anyways I noticed when mashing or really pushing hard on the pedals I get kind of a knocking noise from the BB area. Only happens on the downstroke of the right pedal. So I took it to my LBS (still under 1yr warranty) and he said it sounds like the BB. So I told him I'd drop it off Monday.
So the question is, what could cause this? Something catastrophic to the frame/BB/crank? I didn't see any cracking around that area. Never been in a an accident. I'm guessing something wrong with the BB, but what in particular?