The Bridgestones my "05" came with did ok but didn't last long. The Maxxis Desert IT's were an improvement as far as longevity but not so much on handling. I started running Dunlop 739G's and they were good when new but didn't last more than 4 or 5 rides in the Nevada desert and after about the third ride things would get dicy! Every tire I've tried had some short comings until now. The Dunlop 745 front and rear has made an amazing improvement in the bikes handling. My riding buddies are asking what's got into me? I told them I've found a tire where I feel completely in control from hard pack to sand and the bike feels like it's on rails. I'm running 18 psi to avoid bent rims here in the desert and the tires are performing great. When I've over inflated my tires in the past the front side knobs always break off on the front. I'm on my sixth ride with the 745's and all my side knobs are still intact and the rear is just now showing signs of wear. I don't know how these tires would be for track but for off-road they're great.