I am seriously considering signing up to do my first group century ride. I've done 64 several times and 100 once. The upcoming ride is The Auburn Century and takes place September 16th. It's 106 miles with over 11,000 feet of climbing which includes a 1.75 mile climb with an average grade of 13.5%. Maybe I'm nuts, but I think I can do it. Tomorrow I am going to add some hill training to my daily ride.