The X Series 4WD models provide ultimate slope performance by using 4TRAC four-wheel drive technology. You can cut in rough and steep areas where four-wheel drive ensures greater stability and the grip to cope with steep slopes, wet and slippery conditions. Dynamic Traction Control applies four wheel drive when extra grip is required. This prevents scuffing by varying the speeds of the wheels as you turn and avoids marking a lawn. Built into the Operating Management System (OMS), the unique Electronic Slope Alert helps you safely traverse slopes, warning before the incline becomes too great.