Kreitler Killer Headwind Fan
If you're looking for more resistance from your Kreitler Rollers, a Headwind Fan is a must. The Headwind Fan is an adjustable resistance unit that runs off a belt coming from the front drum of your Kreitler Rollers.
Another benefit of the Killer Headwind Fan is the cooling breeze it provides. The unit can be rotated to point the airflow high or low, and the adjustable louvers can fine tune the side-to-side direction. The airflow can also be directed away from you.