Voit D80 Magnetic Elliptical Bike with SaddleThis product has a magnetic system. There is a magnet next to the iron disk inside the device in magnetic exercise bikes. When the user moves the resistance adjustment knob, the magnet approaches and moves away from the disk, increasing or decreasing the resistance. In other words, it causes the pedal to be turned easily or difficultly. Friction is zero in this system. Since there is no friction, you will never experience wear or noise problems. Since old system belt bikes are sold under the name of magnetic in the market, we recommend that you make a careful choice in this regardWeight40 kgAdjustable SaddleYesBike TypeStepperWorking TypeMagnetic Resistance Mechanism8-stage adjustable Disk Weight6 kg Dimensions120 * 67 * 154 DisplayLED DisplayPulse Measurement SystemHand Pulse MeasurementProgram Count6Carrying Capacity120 kg