The S-Works Turbo 2 Bliss Ready tire sets the standard for how a modern day performance road tire should be. Its fast light & supple making it not only the fastest tire weve ever made but also the fastest tire in the world. It features extremely low rolling resistance & superior cornering traction. & with its 2 Bliss Ready design youre able to run lower pressures for more grip & traction while all but eliminating the risk of pinch flats. So no matter if youre climbing with the best of them or descending like a rider possessed this is the tire for anyone who demands nothing short of the best. Casing: 120 TPI Bead: foldable Butyl wrapped bead = 2 Bliss Ready Compound: GRIPTON Flat Protection: Black Belt 700 x 28mm; PSI 85-95; approximate weight 285g