The fat bike is a bike that is a little different from the others. Equipped with unique tires, the fat bike allows you to ride on different winter roads. In the summer, you can practice it on other challenging surfaces like sand.
The fat bike tires usually act as a suspension. Inflated to very low pressure, the tires absorb most of the shock for maximum comfort.
Besides the oversized tires, this type of bike is similar to any other bicycle.