Spinner Aero Premium Authentic Indoor Cycle  - Spin Bike with Four Spinning DVDs Fore/aft micro-adjustments on handlebars with integrated cradle style dual water bottle holders Fore/aft micro-adjustments on seatpost for maximum comfort and a personalized fit Dual-sided SPD-compatible pedals for convenience and performance 43 lb. signature weighted flywheel and optimized Q-factor at 155mm Commercial grade construction and durability for lasting home use