The round fender 110's had a limiter on one side to keep the front wheels from hitting the pto stuff. It had a tighter turning radius when turning left than right. BTW, JD recommended to always make left turns when mowing, discharging the grass in the lane you just mowed. They even put mowing patterns in their operator's manuals. I wish I had one here to post the patterns recommended. I'm not sure if Wheel Horse did this in their manuals or not? Maybe Toro's Quality of Cut manual?