Resurrected from the archives yet modernized with the same fe analysis as the new fast trak we39re bringing the ground control back for the masses with adaptive tread technology we39re now able to offer xc trail riders the most fastest grippy tyre for all conditions casing 120 tpi bead foldable butyl wrapped bead 2bliss ready compound 60a 26quot x 21 psi 35 65 29quot x 21 psi 35 65