The flywheel uses air resistance to create a smooth, quiet ride that responds to your efforts. The damper is your "gearing", allowing you to adjust the feel of your ride. Unlike most stationary bikes, the BikeErg has a clutch, so just like a real bike, when you stop pedaling, the flywheel keeps on spinning.
The sophisticated Performance Monitor gives you instantaneous workout feedback, with a wide variety of displays and workouts to choose from. The Performance Monitor is calibrated so you'll be able to directly compare your times and distances with other people, as well as track your progress.