The Mudbugs are a great all around tire,especially the 26 size.That size has the largest lug width and lengh,and is the most open for cleaning out mud.They redesigned the 27 and 28 recently,the tread is skinnier,lugs are shorter and not any cleaning capabilities.I had the 26 recently and loved them,I wanted to go to 28 and when I saw them I instantly knew something was different.Put them on and tried them out,the were always caked with mud and never cleaned out,I went through more stuff with the 26 Mudbugs.I emailed Maxxis and they told me they cut the lugs down for weight issues and a smoother ride.I had to learn the hard way,so I sold them after 1 weekend and bought the 28 Mudzilla's.This is a pure H.D mud only tire though,exactly what I needed.Now I need the big bore kit and cam to help my 450 turn them a little better.The best tire I have had yet(Mudzilla's).A little info I thought you should know if thinking about getting 27 or 28 Mudbug's,they still are a great tire though for the$$$$....