Stihl RT 4097 SX Petrol Ride-On Lawn MowerStihl RT 4097 SX Petrol Ride On Lawn Mower The STIHL RT 4097 SX ride on mower with side discharge is ideal for lawns up to 6000m. The side discharge deck distributes the grass clippings across the lawn during mowing, perfect for less formal lawns where grass collection is not needed. As the ride on mower does not need a grass catcher box it is very compact in size and extremely practical, especially if you want to cut your lawn with speed and