I got em on my midsize 800, and the neighbor has them on his 2014 pioneer 700.. They wear like iron as mentioned above.. We ride a LOT of roads, and they still have almost all the tread life on them they did when i installed them.. no joke. its been a year now of normal wear and tear.. They dig GREAT, they Clean out great, They'll tear up your yard GREAT, they dig giant holes VERY WELL, snow they dig way down to the hard ground and get ya going. I have No complaints at all about them other than (as stated above) that they ride rough at low speeds. under 5mph you'll get that "bump bump bump bump" from the lugs contacting the ground. One way to get around this a little bit is to run lower air pressure, and make em soft..but beware...they'll chew up your yard even more if ya do. lol
bottom line, i love em, and ill buy em again when these wear out....but at the rate we're going...thats prolly gonna be a while seriously.