Hi kjay! I do a lot of time indoors as well, as I have 4 kids. I usually only ride outdoors on the weekends.

I don't really know what to tell you regarding preparedness. I will say that nothing prepared my hiney for 5 hours in the saddle except for 5 hours in the saddle. Two hours spinning is a good workout, though. Are you varying your resistance at all or are you doing a spinning workout? What is your longest ride mile-wise, so far?

Are you doing the Cinderella ride?

Anyone else have words of wisdom to share?