The KETTLER E3 Upright Ergometer Exercise Bike provides exceptionally smooth performance while delivering a great workout. Its frictionless, motorized electromagnetic brake system ensures an extensive range of resistance (25 to 400 watts) to yield challenging workouts and outstanding performance. Choose from 4 total programs including 2 Heart Rate Control programs that automatically adjust resistance levels to match target heart rate. The SIEMENS electronic LCD high resolution computer is calibrated for maximum accuracy and displays work out data including Speed, RPM, Distance, Time, Energy Consumption, Pulse Rate and Performance in Watts. Use the infrared earlobe clip sensor or the optional wireless heart rate chest trap transmitter to obtain a heart rate reading. Rotating handlebars and saddle adjust to fit almost any rider. Weighted foot pedals stay upright to more easily mount your foot and include foot straps. The E3 Upright Bike never disturbs others - the Poly "V" drive belt in the drive system eliminates chain noise, providing ultra-quiet operation with no required lubrication. Built-in transport castors allow for easy relocating and the innovative self-generating technology eliminates the need for an AC power source. German made and built to last, the KETTLER E3 Upright Ergometer Exercise Bike is an excellent choice for those seeking intuitive operation, challenging workouts and excellent performance.