Achieve a hassle-free cardiovascular workout with the Magnetic Recumbent Exercise Bike model number SF-RB4936 by Sunny Health & Fitness. Easily mount and dismount the stationary bike with the step-through design with minimal leg movement. The wide . adjustable exercise seat has lumbar support that can help you work out comfortably for longer durations. 8 levels of magnetic resistance for challenging workout sessions. Move the adjustable seat with the easy-to-use lever to accommodate leg inseams between 24″ Min – 32″ Max inches. Maintain stability on the home use cardio machine with the built-in levelers. Grab onto the full-motion arms to work out your arms and upper body. Easily track your heart rate when you hold the pulse sensors.