It's that beefy long travel single crown from Interbike AND the new AD-Vantage tire from Maxxis. Profro said these tires can corner like nothing else, and was asking Maxxis to make this tread pattern as a DH tire with a 2-ply casing...
http://dh-raiderz.de/gallery/view_photo.php?full=1&set_albumName=Eurobike-2005&id=IM000188
http://dh-raiderz.de/gallery/view_photo.php?full=1&set_albumName=Eurobike-2005&id=IM000188