"That's why we developed the Diablo Corsa III," said Knoche. " This tire has, in the rear, three compound sections. The center is a street compound but on the side you have about one and half inch, probably, of our race compound, which gives you a little bit more fun." Take a look at any competitive DOT race tire and you'll note the scarcity of tread grooves in general and the total lack of them anywhere near the edge, or shoulder, of the tread. Even for track day riders that may face damp or wet riding conditions without the luxury of a spare set of wheels with wet weather tires mounted up, Knoche recommends the equivalent of Pirelli Diablo Corse IIIs, "so that we don't have to change to intermediate or rain tires because they're designed for the street.