In Reply to: front sand tires posted by TimSullivan on September 08, 2017 at 16:00:51:
I would try the 16"rim with 5 rib implement style tires. It might give you a little less cutting into the sand when turning. I wouldn't go with an old 16" car or truck tires unless it had a rounded edge. I think a car or truck tire with a square off edge will cut into the sand, I know it will cut in on some soft spots on my lawn.
Another option maybe knobby 19" motorcycle tires but I think it's still too narrow for you needs.