[High Velocity]

On my 500SP, I used to run Mudbugs and now ITP 589's. On the 850, I have a set of heavily-studded 589's for winter use and 27" Zillas for the rest of the year. Now with about 500 miles on the Zillas in a wide variety of conditions, I can honestly say they are about the best all-around tire for the area I ride. They seem to do reasonably well in the mud. They've endured alot of rocky terrain without getting cut up. They're excellent at crawling over wet, slippery logs and are awesome for high-speed, trail running with little to no over-steer or pushing in the corners. I'm thinking about buying a set of Outlaws or Silverbacks on a 2nd set of rims for the pure mud runs, but I'll definitely keep the Zillas for most of my riding.