I believe it means cycling on a strate path or road. No like hills or inclines. Not totally sure, but that's what I think. Anyone correct me if I'm wrong.
Kathy- I'm so happy to see you post! I have always admired you since reading your story and I always loved following your path w/ the trainer. We are about the same age/wt loss challenges so I guess I just related to you.... hadnt seen you post in awhile so just wanted to say hi!