My Uncle Ollie in Michigan still holds a 181 bowling avg on two leagues and plays 18 holes of golf 3 days a week, at 91 years young. I am going to give it my best shot at riding my Road King to and past that age, I'll be 70 in January.
Met an older gent in New Mexico a few years ago in the little town that claims is where Billy the Kid made his last escape. He pulled up to the gas pumps on his BMW touring bike and told us he had been a B-29 crewman in WWII. He regretted not being able to show us some neat back roads leading to where we were heading because he had hurt himself on his dirt bike a few days before.....WTF? Had to be at least mid 80's. Still going stronger than us younger folk.