Thanks!!! we ride in the hills all the time and the century is south of us so it will be less hilly so we figure we will ride 80 miles here in the hills so 100 on a relatively flat course should be nothing. She is going out of town this w/e so I don't know if I will be able to make myself ride that far again, so I hope to ride more during the week, I rode 140 miles last week so I hope to ride near that this week