Thanks guys! Yes they are comp tires (KR). They come lightly grooved with a basic pattern, and once the different teams get them they custom groove them however they desire. The tram that did these used two different patterns. One is their dirt cut (I got 4 of those) and the other is their mud cut (I got 1 of those as a spare and you can see it on the driver rear). They are designed to be mounted white letters out (which I love) because the outer lugs are long and skinny for corner grip (I can totally vouch for that ).