Don't know about front, monkey. So far, what I have seen is only on the back. I also have to say, John, is if this PP SC had lasted 11000 miles, then we would not be discussing this right now. Ever since I started riding two wheels in 1960, the back tire goes faster than the front. But an old Maxxis at 3500? Avon Viper Stryke at 4000? Never got to see how the Metzler did BECAUSE SOME DOPE FIEND STOLE THE DT AND WRECKED IT!! So since 2013, I have spooned tires FIVE TIMES! Gettin' tired (har, har!) of it. I think also, John, that someone at the Michelin factory cheated on that hard compound...