If you're looking for a workout that will really get your heart pumping, an air bike is a great option. These bikes are known for their ability to deliver a punishing workout, thanks to the resistance generated by pedaling. The faster you pedal, the more resistance you create, and the harder your workout will be. The size and blade count of the bike's fan can also contribute to the level of resistance, so you can really tailor your workout to your own fitness level.
Another great thing about air bikes is that they're generally less expensive than other types of stationary bikes. So if you're looking for a great workout without breaking the bank, an air bike is a great choice.