I'm done with Dunlop tires (D606, D752, D739) for enduro riding. They just don't last that long and the D606/D752 fronts slide on dry desert terrain with the 650R. Out here in the desert and on rocks, I use a Michelin S-12 90/90 front tire and a Maxxis Maxcross IT 120/100 rear tire. Awesome grip, Decent life!! The Michelin is the best front tire I have ever used on the 650R. Last weekend, I hit sand washes, single track rock trails, rock face, mud, hardpack dirt, and pavement. I am going to try a Desertcross IT 120/100 rear next for a little more longevity at the expense of harder rubber. The only drawbacks I have to complain about these tires: -Michelin S-12 90/90 - The front is a little squirrely on the pavement meaning that the bars can shake if you don't hold them steady. Other than that, no complaints to date. Straight line braking on pavement is still very strong. -Maxxis Maxcross IT 120/100 - The O.D. of the tire is so large that it rubs the white plastic swing-arm guard and slowly chews it up. The bead is not as tight on the Maxxis and my bike will slip the tire relative to the rim. Yes, the rim lock is tight. The valve stems get sideways. I might put in a second bead lock, but for now, I make sure that the tire has at least 15 psi in it. I can air down the tire, loosen the bead lock and rotate it back pretty easy with the wheel still mounted on the bike. On the pluse side, the tire is so big that it protects the rim really well from getting bent or dented. This tire grips well on pavement.