What brand/type of tire do you run and what pressures? I ride way harder on the street than I should and am getting over 4k on my Shinko Verge rear tire, 500 miles or so longer on a front. I generally set my pressures at 32 psi frt and 34 rear, provides a quick enough warm up without getting too hot. The Michelin Pilot Roads (3 and 4) weren't even lasting that much and I was paying over 150 bucks more a set, grip level is easily the same in the dry. This is my current Verge at about 4k, getting within 500 miles of being completely bald in the center.