Standard pedals on the test rides, so that can't be the problem. Many of the bikes were too small, so maybe the sore knees are from not enough extension. I looked at the Trek bikes and they are leading my preference list right now. Unfortunately, I need at least a 58 cm frame and their WSDs only go to 56, and the LBS didn't have any WSDs in a 56 cm. But I haven't ruled them out because 2 cm isn't that significant. A traditional road bike with a large enough frame for my legs has a top tube that is a bit too long, so the WSD would be better. The option I'm looking at is to use a slightly shorter stem to back the bar up a bit, and that solves that problem. Anyway, still shopping and don't want those sore knees after I make a decision!