What is a recumbent bike you might ask? A recumbent bike is an exercise machine that places you in a laid-back position. You will love working out on a recumbent bike because they are comfortable, your weight is distributed over a larger area. Recumbent bikes offer a great cardio workout. Stationary biking is also very low impact, making recumbent biking a lot less impact and pressure on your joints than a lot of other home workout machines, such as treadmills.