YOU I DONT REALLY CARE HOW LONG IT LAST AS LONG AS IT HOLDS ON IN ALL CONDITIONS I often take a tyre of when it hits the the wear bars or feel it is not 100% safe the Dunlop Elite 3 in a 17/80/17 which grips better and feeds back better than Avon 170/80/17 or the Michelin Commander 140/75/17, It is the first tyre I have actually worn down further, it was only I happen notice I had gone down to almost no thread grove but still felt good to ride, the milage is more than the Avon but that is possibly partly due also as I found the Avon to go off once it was getting close to wear bars, I wont ride on a tyre that does not feel right