The 3G Stepper is a cross between a bicycle and a StairMaster; it rides like a bicycle but is propelled by a vertical motion with your feet on two decks on either side of the frame. You stand up while riding, and your upper body gets as good a workout as your lower body does. Arriving in stores in September 2006, the 3G Stepper will …
3G Bikes: The 3G Stepper
