Folding Exercise Bike, Fitness Upright and Recumbent X-Bike with 10-Level Adjustable Resistance, Arm Bands and Backrest About this item Folding Exercise Bike, Fitness Upright and Recumbent X-Bike with 16-Level Adjustable Resistance, Arm Bands and Backrest Functional Foldable Design - Get intensive workout with an upright position, or easily convert it to recumbent exercise position for a casual workout.