Originally Posted by dafydd
i think i'd check your chainline and chain tension first, given the recent work done. if either are mildy off, they could cause a similar feeling; if badly off, you could get hurt. if you reused the old chain, that can cause a gritty feeling as well if it's worn out. if they're stock pedals, they probably can't be overhauled and wouldn't be worth it anyhow. just drip some oil into them and call it a day.
Okay, good advice. I put on a used chain, but freshly cleaned and with little wear to it. I had the drivetrain components installed at a good LBS here in the city, in fact checked them myself and they are fine. They are nice old steel-cage pedals, came with the Gran Prix; they're vintage, and I'd rather overhaul them than spend another $40 on some new ones, though. But first I'll double check everything and add some more oil to the parts in question.
Thanks.