FEATURES RR-S compound provides ultimate low rolling resistance and excellent all-round grip Optimized compound profile provides better tire shoulder grip for outstanding cornering capability Fast all-round tread pattern for maximum speed on the road R-Shield Puncture Protection ensures a high level of puncture protection Carbon/Kevlar Composite Bead keeps the tire secured to the rim and provides greater strength to withstand the higher pressures needed for road tires. SPECIFICATIONS : Casing : 60TPI Bead : Folding Puncture Protection : R-Shield Compound : RR-S 700x25C/25-622, 85-125 psi/5.8-8.6 bar, approximate weight 375g 700x28C/28-622, 80-105 psi/5.5-7.2 bar, approximate weight 395g