Smooth centerline with square micro-knobs on each side and larger more pronounced shoulder knobs for dependable cornering. Designed to be a fast rolling lightweight gravel tire with impressive traction in all conditions while offering a smooth and predictable ride. Tubeless compatible casing available in both 60 and 120tpi. GCT - Features the GCT casing which wraps the tire from bead to bead with a secondary casing layer acting as a shield against punctures and sidewall slashes without the weight of conventional belting