I have had titan 589 ms's on an old 450 and they were great. I'm not sure which brand your looking at but the titans certainly were a tough tire. They gave great ride on the hard pack, while providing outstanding mud and snow capability. I recently put mudlight xtr's on my ruby and are quite pleased with them so far but these are different than the regular mudlights. I think the titans are of a better compound for longer life as my mother now has this machine on her farm and the tires are used quite a bit traveling on blacktop from field to field, and the tire tred is almost as new......... just my 2 cents.