We're not afraid to say that Specialized's GRIPTON® compound is the best out there. And when combined with an ultra-supple 320 TPI cotton casing, you get a tire that's very special—you get the Turbo Cotton tire. Both materials stand for master craftsmanship, and they work in harmony to reflect their dedication to building the world's fastest tires. By bringing both of these materials together, they've created the best clincher tire out there. It provides a clear-cut performance advantage.
Casing: 320 TPI Polycotton
Flat Protection: BlackBelt
700 x 24mm, psi 115-125, approximate weight 220g
700 x 26mm, psi 95-115, approximate weight 240g
700 x 28mm, Hell of the North, psi 85-95, approximate weight 260g