I currently have 7000 on a Shinko front which I paid $65 for. It handles twisties as good as anything else I have tried BT021, PR2, Road Smart. It seems to be wearing very evenly. The center tread has 2.5 mm depth left. It doers have a single straight groove right down the middle so it does give that squiggly feeling on bridge gratings. But it's just a feeling, not a hazard. I am going to keep it on for my trip to Tennessee the end of the month. I still have not found a rear tire that will last long enough for me, the Shinko went less than 5000 IIRC. I have a PR2 on now only because they were discounting then 30 bucks.