My wife has been riding a Diamondback "comfort" bike for the past couple years. She will only ride on Mups, but even that has been getting a bit difficult, due to some arthritis problems getting worse. She wants to keep riding, but the Diamondback has been too much work. So, yesterday we stopped at the LBS, and she picked out a Trek 7.3 fx. This morning, we went on a 20 miler, and it was great to see the smile on her face when she finished! The Trek is aluminum, so it's somewhat lighter than the Diamondback. The Trek also shifts much more smoothly than the old steed, and with more "road"-like tires, she is having a much better time of it. It'll be nice to see her actually enjoying rides now.