FitDesk Universal Saddle Extender for FDX 2.0 and 3.0 Models - Adjustable Exercise Bicycle Seat Adapter - Solid Steel Welded Construction - Leg Extension for 6-Foot Tall or Taller PeopleThis custom made Universal saddle adapter allows FitDesk riders to install any saddle (with rails) on the market. Want to try a different type of saddle with such a..