Went on my first AA/BB ride this past Saturday and got completely worn out. Well first, I just got off of a 12.5 hr midnight shift at 6 and the ride started at 0830. I thought I hydrated well enough and would be fine....NOPE!!!! Around the 20 mile mark, the calves started cramping. That was my first experience of pain while riding other than sore thighs muscle or saddle butt. Man, I never knew how that could effect your overall performance. Needless to say the next 27 miles were killer and the group was wayyyyyy out of sight. Anyone experience this type of tough lesson before or have tips to prevent it from happening again? Still motivated, and want to become a really good rider. Need patience..