Before I researched the tire less than I should have, I got the Bridgestone 020R-U rear instead of the "F". I've searched the threads but I can't find anyone that can tell me the mileage on it, other than it will be less than the F version. I just want the tire to last a 8,000 mile round trip to Alaska, sticking to the interstate the best I can. Can anyone tell me their personal experience with it? Thanks