How to Prevent Cramping When I increase my riding routine I end up getting bad cramps in both my calves and also my thighs and hamstrings.  Does anyone have any tips to reduce cramps when your riding gets more serious.
I had problems with cramps in my legs after about an hour of exercise. A friend of mine that is a physical therapist said that if you sweat a lot this can cause loss of potassium, calcium, and magnesium. These minerals are used to signal the muscles to flex and relax. I started eating vitamins with these minerals in them. Since then my problems are gone.

Stretching and a good warm up is also important to prevent cramps.