Jumping and lifting the tires off the ground is one of the unique aspects of mountain biking. And arguably one of the most thrilling things to do on a bike. Just as there are many ways to ride on a mountain bike, there are quite a few types of jumps to get you and your bike up in the air. Some types of jumps are more common than others. Some are safer, some are scarier. Some are optional while others are mandatory. And some are simply easier to build.