Vicki - How did your big ride go? What did you end up with for an average speed? I'm like Wawaski and go as hard as I can and only end up with 13 - 14 mph. But we do have hills where I live which holds me back. I don't know what I could do if I lived somewhere flat. I am going to Florida to ride next weekend and I will find out. But I bet it won't be much more than 15. I find if I take frequent rest stops, I can sustain my speed better.