Allan and I started the ride around 900a at the northern end of the trail in Dunnellon FL. We had about a 5.5hr ride time. I did have some cramping problems. At about the 70mi mark, the big muscle on the back of my leg, opposite the quad, pulled. We pulled over for a little for me to stretch and drink some liquids. At the early 90mi mark though, I had the worst cramps of my life. I had my quad and that same muscle as before alternate cramping. If I'd hold my leg straight, the quad would cramp, if I bent it, that backside muscle would pull. I finally jumped off of the bike and got it stretched out, but that was very painful.