Premium handcrafted bonded, rugged Gravel/CX tire for professional use Bonded tread based on natural rubber Smart Plus = low rolling resistance and excellent grip Super PolyCorazza Armor sidewall material provides superior performance, comfort and durability in the field Reinforced CHAFER bead protection for use with inferior carbon rims Use only with grooved rims - Hooked PPS Ganzo + 2 x PPS puncture protection 260 TPI 2.3-3.8 Bar