Gravel Grinder:~ Tailored for longer, more demanding rides where tire width and flat protection are at a premium. To this end, they gave the Gravel Grinder Race their Double Puncture Protection System (PPS2) and spec'ed it with a generous 38mm width, resulting in great durability and dependability with comfort and stability on uneven and loose terrain.
• High thread-count SuperPoly casing increases suppleness and reduces rolling resistance compared to Poly casings.
• Includes PPS2, two layers of puncture protection with one special fabric placed between the tread and casign and another on the inside of the casing.
• Open Tubular tire includes lightweight aramid bead for compatibility with ETRTO standard clincher bead rims.