i run them on my 450 and there great, good on the mud and ride like a stock tire at any speed. they clean out pretty good too.
what are you doing riding them on the road?concrete, asphalt? mine wear great, i am barely showing any tread wear at all, but i ride in the dirt, alot of mud and ocasionally the rock road in front of my house. i would buy them again in a heart beat.I have had them on two bikes and they don't wear to good.