Our Review Of The Very Impressive Schwinn Airdyne AD4 Upright Bike

The Schwinn Airdyne AD4 upright exercise bike allows you to crank up the resistance to challenge your body. As you pedal, the resistance increases, therefor you do not need to manually change the resistance levels. Alternating handlebars allow you to exercise arms and legs at the same time. The handle bar motion is unique because it allows your body to move in a natural motion while you pedal. The pedaling motion creates cooling air. The computer lets

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