Flywheel40 lbs chromed solid flywheel for stability with felt pads for adjustable pressure resistance. The design of the circle on the flywheel makes the flywheel fly like a flash lightning fast.Adjustable HandlebarsPadded adjustable handlebars that move up and down in height. Multi-grip ergonomic handlebar designed for all types of hand and grip positions for maximum comfort.Leather Padded SeatFully adjustable leather padded seat, moves forward/back and up/down.You can move forward/back (and up / down) with a simple twist of the knob. So you can remain comfortable heigth when riding for long periods of time.Mute RunningBelt driven flywheel rotation, the factory run decibel value test as low as 30 dB. Felt brake design, unique silent brake technology.