My tractor is the BX1860 and I have installed the larger tires on mine. I love them. However, there is one issue that I experienced and that is the left front tire was rubbing on my RCK54 mower deck when turning a full left turn. I had to adjust the turn stop bolt to prevent the tire from rubbing the mower deck. This made my left turn radius about 20% wider than it was previously. The right turn radius is not affected because the right front tire does not rub on the mower deck. I don't know if other mower deck models would have the same issue.