Century question for the 70+ riders. One month of training to go before my first century in twenty five years. What was your highest miles ride before the century? Twenty - thirty years ago the wisdom was 75 or 80 was good enough before the 100. I am trying to figure out what level I need to reach before I can feel confident about doing well on the Shiner G.A.S.P. 100 on May 3rd.