My brand new Beta 450 rr comes equipped with Scorpion Extra's mounted. 250 Miles and the Front tire is shot . 200 miles on it and I could feel it going away today the sidewall knobs peeled off on a hillside. the front end slides into a rut and down I went. The bike just passes the iinitial break in. So now I am looking for a decent wearing good traction tire for rocky rutted hardpack. I a m not in any way saying anything bad just looking for a better lasting tire for that price. I have only got maybe 5 rides on it. At that ratethe cost of tires will break me. Have not had her a month yet!