gidday i been through 3 s12 michelins on my k5 and have found the wear out a bit quick mine was a 130 80 19 and a tyre guy in nz said there tyres sizes are incorrect but they do hook up good for the first couple of rides then round off quick i have gone to a 120 90 19 mitas now and have done 4 rides and it still sharp on the knobs and it looks wider than the 130 and it hooks up mean