eh, in my more "spirited" riding i've worn D206's and pilot powers right to the very very edge. i started to pick up knee dragging and worrying much less about "chicken strips" shortly after an incident where i assume i ran out of tire during a lean. luckily i didn't go down, if it had been the back tire i figure it'd have kicked out on me and probably hi side me, but it was the front, and it literally didn't even push, just slid about 10 feet from the looks of the marks on the road.