Schwinn Upright Bikes offer a compact design and the feel of a more traditional outdoor bike while relying on core, stabilizing muscles to balance your body weight. Look to the Schwinn 150 for comfort, value and versatility. Features include a 20-pound flywheel, 16 resistance levels, 18 programs, speakers and MP3 music input port, and both telemetry and contact heart rate monitoring. It also includes the following exclusive Schwinn features: