i just bought a b2710hst with ag tires i will be using it mainly to cut my lawn and the ag tires tear up the lawn. i wanted to put turf tires on the front but a local dealer said i couldn't ? is it possible to do this or am i going to have to buy all new tires? researching online i have seen some posts that seem to buy new rims also, current tire sizes are 180/85d/12 ag and 12-4/16 ag any help would be greatly appreciated!