ORIGIN 8 WILDFIRE GX 700x40 FOLD BELT BK/BKBred for Gravel Grinding, the Wildfire GX keeps you burning down access roads and back country like nobody`s business Features the same small block tread as our Wildfire CX with increased width for staying firmly planted even on loose gravel Connecting lug bridges increase rigidity while also aiding in puncture protection Magnitude I level puncture protection a high density Nylon layer beneath the tread surface