I am not sure why, but I have never thought of biking as one of my kids’ passions. However, it is probably the longest passion that my boys have had. Sims started biking well by the time he was three. He used to ride his little 12 inch bike with me on my long runs. Parks, of course being three years younger, started riding a bike as soon as he could get on one. And neither of them has stopped since! Sawyer rides too, but mainly to keep up with her brothers.