I'm considering these, maybe. Anyone used them before?
http://www.gemplers.com/product/TG41/1000x165-Tire-Guard-Skid-Steer-Industrial-Tire#TAB-TECH
http://www.gemplers.com/product/TG41/1000x165-Tire-Guard-Skid-Steer-Industrial-Tire#TAB-TECH