The Shadow Conspiracy Creeper Tire - 20 x 2.4 Black. The Creeper is tire is designed for maximum street abuse with thick rubber and high thread count casing that allows up to 110 psi. With a technical tread pattern the special sipes on the outer edges are ready to hold fast on wallrides and vertical surfaces. The side tread is positioned out of the way for smooth grinds with no hang-ups and the smooth center keeps rolling resistance to a minimum. The Creeper is the ultimate street and park tire.