Rocks???
If there are any rocks you deal with or sandy soil(abrasive), I'd go with the steel. I run double conditioner rolls-steel on my Challenger SP185 and does an excellent job/holds up well in rockier ground
If there are any rocks you deal with or sandy soil(abrasive), I'd go with the steel. I run double conditioner rolls-steel on my Challenger SP185 and does an excellent job/holds up well in rockier ground