The Lifespan Fitness Commercial Recumbent Bike helps you to burn calories, build strength and aerobic endurance, with the support of the adjustable seat to help alleviate lower back stress. Engineered with a world class commercial grade frame, the RBX-100 is designed to endure the toughest workouts The magnetic flywheel is smooth and practically friction less, with a massive 32 levels of magnetic resistance allowing you to up your workout with the twist of a dial. The large LCD display helps to track parameters easily allowing you to monitor your health while exercising.