We rented a couple of bikes from a local business that seemed to specialize in salvaging old bicycles. While we waited, they put the finishing touches on our rides and sent us on our way. They were inexpensive, about US$6 each for the day, but we definitely got what we paid for. Eventually, I found the one “perfect” gear combination where the chain didn’t fall off the derailleurs and stuck with it for the rest of the day.
