I tend to feel a bit stiff at the start of a ride, but I just warm up by riding, as was posted above. Of course, I "go easy" for the entire ride, since I'm more of a scenic gawker rider, than a cyclecomputer-toting "what were my time and speed today?" type.
On the way to the grocery store this morning, I was behind a Senior Jogger, and he jogged faster than I pedaled!