With RR-E compound and Race Shield Puncture Protection, Gavia Fondo is the best choice for a robust mixed terrain tire offering superior grip, high mileage and maximum puncture resistanceLow rolling resistance combines with high mileage through use of a fast, efficient and durable compound in the center of the tire with a tackier compound on the shoulderOptimized compound profile provides better tire shoulder grip resulting in outstanding cornering capabilityEndurance-Specific Tread Pattern Design for better wet/mix-terrain gripR-Shield Puncture Protection ensures a high level of puncture protectionCarbon/Kevlar Composite Bead keeps the tire secured to the rim and provides greater strength to withstand the higher pressures needed in road tiresCasing: 60TPIBead: FoldingPuncture Protection: R-ShieldCompound: RR-E700x28C/28-622, 80-105 psi/ 5.5-7.2 bar, approximate weight 395g700x32C/32-622, 50-75 psi/ 3.5-5.1 bar, approximate weight 445g