I had 589's on a Kodiak, although they are a great tire, they also ride like they are made from cast iron. Very hard ride and they do tend to "bump steer" and drift. I have the Mudlites now and they ride so much better it seems, but I have been contemplating getting the ITP ATR'S just for the plush ride capability that a radial tire gives. If you are looking for a comfy ride get a radial tire, and if you want somewhat of an agressive tire with a decent ride go with the Mudlites. If you want an agressive tire that lasts forever, go with the 589's.