Don, I've got almost 3500 miles on my 45/46s and they are not half way done yet. Although, the edges are a little bubbly and worn, thanks to 1600 miles of tearing it up on the seXXt and Hoot rides. At this rate (back in Illinois where the roads are straight), I should be looking at 7 to 8K miles with no problems. To me, they are the best tires that I've had so far, both from a mileage and traction standpoint.