Most tri ribs will tear up turf if you turn tight when going at a good speed in the grass. But that being said, I had them on a off color diesel GT and if care was taken in the turns, easy enough with a hydro drive, its very do-able and they are really nice in the fields. Just have to get past the high cost of those Firestone tri ribs! I would have prefered they made them with more equil ribs and not the huge center rib like they did. Mike