Schwalbe dirty dan evo mtb tyre supergravitydan is the choice when the ground is muddy tall blocks and the vertstar triple compound bite into soft and loose terrain large gaps provide the necessary self cleaning and braking traction new now also with the revolutionary super gravity technology 26 x 235 inch featuressize etrto 60 559 26 x 235 inchtyp foldingcompound vertstarexecution super gravity tl readycolor blackskin snakeweight 1015g 36ozpressure 160 350 bar 23 5