installed on ktm XC_F 450 any way I read many many reveiews on this tire before buying and this is the first time I have herd about a side wall issue,(see other review). maybe had low air pressure and road roads I dont know. I love it.I have one hare scramble on it and a trail ride it shows some rounding of the lugs and some chuncking (nothing bad). There is a lot off loose sharp shale where i ride. I love the traction. I have nad it threw mud sand rock and steep clay hills. It clrawls threw slop with out needing to race the engine. Climes sand hills laced with rocks and boulders with ease. im sold. This is the rear tire for me.