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Resistance - Choose the resistance that best fits your fitness goals. Manually adjustable direct tension offers resistance as you pedal against the airflow of a fan. Magnetic resistance is the most sophisticated as a magnetic airflow creates and tracks the amount of resistance, providing a more variable cardiovascular workout.
Feedback Mechanisms - Choose styles with monitors that display the speed you're traveling, the distance you've gone, your heart rate, pulse, fat and calories burned, and other information relating to your body's performance.