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Exercise Bikes > Man Riding Exercise Bike

 
silhouette of a man riding an exercise bike
Exercise bicycles make use of mechanisms that provide the user with resistance necessary for exercise.  These resistance mechanisms can be made of magnets, fans, or friction.  Some exercise bikes enable the user to pedal backward, exercising different muscles than are used to pedal forward.  Some bikes include handlebars that rotate with the pedals, so arms and shoulders can be worked simultaneously while pedaling.
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Man Riding Bike Silhouette