i have them about 2 years, no flatsup to now, i like thm very much on dry roads they have a very good grip, in the wet i can say they are best i have ever fitted, they do pinch on fuel than other brand's i had, but i do not care as i always had a heavy foot, my house is on a very steep one way road, this is the only tyre in winter i do not get a tyre spin, it only spins on cold rainy days but not much, with other premium brands i could not climb the hill if i didn't control the throttle, hope this company does not change the tyre quality because i will fit them again, i have never fitted the same tyre twice, as i have the steep road as my personal tyre test