I put s-12's front and rear on my bike oh about 20 to 25 rides ago.The rear tire is laughing at the wear. I am very impressed with the quality and performance of this tire.I will say that the s-12's will last atleast 2 times longer than dunlop or bridgestones intermediate tires.Shoot i will be bold and say 3 times longer.I used dunlop's 752's 756's 755's, and bridgestone's that came stock with the bike they don't even compare to the longevity of the michelin's.The hook up is excellent on clay, sand, and medium soil, The 756's are too.Hard pack though you will break traction very easily with the s-12's. But that is why they make a m-12.If i am getting this excellent wear on the s-12's I can imagine how well the m-12's hold up.I really like the performance of the s-12 ,and I am more than pleased with the wear of the s-12.Michelin has a winner with me.