This is my 5000th post!!! I figured I'd do it in my longest running thread.
Yesterday I was riding in Prospect Park on my roadie, but I was noticing how many people were on Citibikes now that they've expanded down that way. I'll have to try doing the loop on one, especially the hill. Maybe I'll do it while my wife is running in the park, training for the Marathon, and see who can do it faster. Or maybe to make it a little fairer, race against one of the faster runners in her group.