Premium road race tyre offering the ultimate combination of speed, traction and puncture resistance.FEATURESRR-S compound provides ultimate low rolling resistance and excellent all-round gripOptimised compound profile provides better tyre shoulder grip for outstanding cornering capabilityFast all-round tread pattern for maximum speed on the roadR-Shield Puncture Protection ensures a high level of puncture protectionCarbon/Kevlar Composite Bead keeps the tyre secured to the rim and provides greater strength to withstand the higher pressures needed for road tyres700x25C/25-622, 85-125 psi/5.8-8.6 bar, approximate weight 375g700x28C/28-622, 80-105 psi/5.5-7.2 bar, approximate weight 395g