The MTZs hook up great in the mud and are decent on the road. I have seen them on an XJ before and they chew through the mud. They are prob one of the best handling mud terrains as far as road manners are concerned. With that said they are still a mud terrain and will not perform as well as the duratracs on the street. If you take care of the MTZs there is no reason why you wouldn't get at bare minimum 25k miles out of them. My buddy got closer to 35k out of them on his XJ. If your going to be hitting the trails only once a month or so I say go with duractracs. If your gonna be on the trails every weekend then go for the MTZs. That's my vote.