The John Deere S120 is apart of the 100 Series, it comes with an ergonomic operator station with an adjustable seat so you can always have a smooth ride on your turf. 30-Second Oil Change System, exclusively from John Deere. Included on the S120, S130. Two-pedal foot control makes changing speed and direction effortless. The 42in Edge™ Cutting System delivers an even cut no matter the size of your yard