Riding a bike is simple enough that it's one of the requisite skills taught in childhood. It's complex enough, though, that you can easily get hurt if you do it wrong. For adults who want to develop serious cycling skills, it's important to start by finding a bike that's fitted to your physicality. Bikes are often split into three categories - kids, men's, and women's - but bodies come in far more than three shapes and sizes. That's why it's essential to find a bicycle that's designed for your unique body type, whether you're big, tall, short, or small.