I am a little apprehensive. I signed up for a tour in the mountains. I mostly bike in the flats along the eastern coast. The tour says something about a wall--not expecting many to get to the top. So I wonder, can I take tennis shoes and walk when needed. Or do others find they just give up and use the sag wagon? Or do you ride some, walk some till you get to the top?

I hope my knees hold out.
fs