Comfortable, fast, and reliableâthree words that make the Vita Disc the perfect bike for your fitness plan. Plus, this version has a step through design that makes getting on and off the bike, as well as putting a foot down, a total breeze. Its A1 Premium Aluminum frame was designed around our incredibly comfortable and efficient Women's Fitness Geometry in order to deliver a superb feeling of comfort and control as you work up a sweat. In terms of reliability, this Vita includes a long line of women's-specific components that are hand-selected to give you the best bang for your buck, which means that you can expect things like powerful hydraulic disc brakes and near bombproof wheels. Add it all up, and you get a speedy ride that's just as down to work as you are.