ENVE HEX Gravel Tire 700x40C Folding Tubeless Ready Black/TanThe HEX gravel tire combines the elements required for those seeking a performance option that doesnt sacrifice traction. A novel tread design features hexagonal blocks that allow a three way flex pattern to add suppleness to the casing, allowing the tire to conform to varied surface conditions for consistent handling. This provides both driving and braking traction for confident handling. Pioneered on the SES Race Day road tire, the HEX uses a nano