Provides a non-weight bearing exercise. Adds training versatility to your VersaClimber, while seated, user may pedal like a bike or use both arms and legs for a more relaxed comfortable work out. Adjustable seat for use on LX and SM series only. NOTE: SM must be purchased with seat mount “bracket” — this is an upgrade option – be sure the SM or SMA has this mount bracket first, before purchasing the adjustable seat.