home use magnetic bike 1,Flywheel:3kgs 2,inside magnetic system 3,8 level of magnetic resistance 4,certificate:GS.TUV Flywheel:3kgs, inside magnetic system ,8 level of magnetic resistance ,certificate:GS.TUVwith pulse sensorassembly size:85*46*120cmpacking:1pcs/ctnMaterial:steel,plasticadjustable height of saddle:62-86cmMeas:71*28*51cmN.W/G.W:17/20kgs1) Whisper quiet and smooth workout2) Heavy ...