I started at age 6 (minibike), but I got my Uncle Ralph into biking when he was 68 years old. I sold him my old Kaw KZ400 2 stroker. He had never ridden anything but a bicycle. When we got him on his bike, he was a bit nervous at first. I saw him about a month later and that guy laid rubber down like a bat out of hell. I couldn't believe it. He was a total maniac and actually had great control. Funny thing is that he later told me had found out he had cancer and not sure what he figured, but I think he didn't mind going out in a blaze of glory instead of the way he really went out. Anyway, it really made sense to me later since I couldn't see how anyone over 50 could get that crazy.