World class competitive xc race performance muddy conditions with soft rubber compounds that stick to wet roots and rocks and well spaced knobs that allow the tyre to clean well this mud munching tyre is made for riders who won39t shy away from an environmental challenge delivering traction in sections that most riders won39t consider hiking overgt casing 420d1 for 15 improved cut resistance gt bead aramid gt compound 60a gt butyl wrapped bead 2bliss ready gt psi