PROFLEX Commercial Spin Bike Flywheel Exercise Home Workout Gym - RedThe New PROFLEX SPN750 II Spin Bike is the perfect way to get commercial grade fitness equipment into your home. This state of the art unit has been designed to include the best quality features for spin cycling. While other spin cycles used in home gyms typically feature a low grade flywheel, PROFLEX have incorporated a heavy stainless steel commercial flywheel. This is beneficial because it creates a smoother, more realistic sensation of riding