Choosing the type of fit you want is dependent on the type of riding that you will do. It's all really more about fitting your bike to you. With the range of riding from recreational to enthusiast to mountain biking or competitive racing. There are alot of various brands and style of bike. There are also bikes specifically designed for women. Just like clothing comes in a variety of style, colors and sizes so do bikes. You'll quickly find that one size does not fit all.