i'm 22.. but my friend i train with quite a bit is 16.. people from his school that we often ride by laugh at him for the spandex. He enjoys it quite a bit, he wants to go to worlds in a couple of years. He's well on his way too, i have a tough time keeping up with him at times, especially hill sprints, and just regular sprints.. but he is 15 or 20 lbs lighter then me i think...