This may be a little late for your needs, but I would say to bring them just in case... I just finished a 50 mile mt bike race and at mile 40 I had cramping (legs) issues. I popped two endurolites and within 5 min the cramps had dissapated. There is a first time for everything, right? If you have cramping issues w/ your legs, there may not be another solution for you at that time. Sure beats getting in the sag wagon!!!