I'm in the same boat as Thump07,as I had 4000 miles on OEMs with plenty to go. I just wanted to go with the new Metzeler Roadtec 01s. Love them. I always check the tire pressures, especially if bikes sat a few days or if going canyon scratching, usually have a couple of fair to good wheelies per tank, and cruise around 6000 rpm when there's no Officer Friendly around, so I didn't think it was all that easy on the tires . Ran into this with my last bike. All the locals were getting 3 to 3500 miles on rear and I got 7 to 8000 miles. Only reason I could figure: they were from San Louis Obispo, California (read, lots of great curvy roads), and I live where you ride for an the better part of an hour to reach the "good" roads (lots of interstate travel).