Formula Pro Tubeless RBCC is newly formulated with our high grip compound, RBCC², to ensure serious grip capability while having improved wear life. These tires are hookless compatible. Hookless tires can be used on both hooked or hookless wheels/rims. TECHNOLOGY TUBELESS: Lighter overall weight than a tire + tube, with lower rolling resistance and no pinch flats NATURAL RUBBER INNER-AIR SEAL: Prevents air leakage 180 TPI CASING: Strong and supple with a sublime road-feel NEW RBCC 2: Newly innovated RBCC 2gives serious grip in all road conditions DISC BRAKE APPROVED: Specially engineered casing and bead protection makes the tire compatible with disc brakes BEAD PROTECTION: Gives extra protection against bead hooks, and also an air tight seal when mounted properly HOOKLESS: Hookless rim compatible