Make from Polyurethane, these tires is wear resistant and less prone to damage Suitable for 12x2.0, 12x2.125, 12 1 / 2x2 1 / 4, 12 1 / 2x1.5 (40-203 Features special line for grip, offering better handling in terrains Equipped with advanced antiflat tire technology, ensuring a puncture resistant ride for mountain bikes It is designs to bear long terms use without deformation, providing a stable for your bike