... :Orbitrack bike,cross trainer bike,OTR60821, Flywheel:7kgs 2, Dual chain drive system3, Vertical seat adjustment4, Continuous resistance levels5, Max user weight ... .:28kgs4, 20’/40’/40HQ’:202/404/4645, Delivery Time:30days Chain drive system,Flywheel 7kgs,orbitrac cross trainer bike,OTR6082