The kettler ergometer e1 the kettler ergometer e1 is the new low cost entry level of the current e series with a high level of exercise comfort the e1 is solid and ideal for the home fitness machine equipment it offers high stability good features as well as different training functions the display is easy to read and easy to operate via the push nturn knob depending on the size handlebar and saddle can be adjusted quickly and easily by 6 kg fly wheel most ergometers and cross trai