Surly Knard 700 x 41mm Tire If you're looking for a tire that rolls fast with a small block tread pattern, but doesn't sacrifice traction, the Surly Knard is your tire. The Knard has a densely packet center with small knobs for superior low rolling resistance. As you move to the outside of the tread the blocks become more widely spaced providing good traction and high-speed cornering. The Knard was designed for aggressive cross-country riding and comes in a wide range of sizes so any bike your riding can be fitted up with a Knard. Features Tightly-spaced, low-block tread pattern Low rolling resistance SPECIFICATIONSSize700X41mm Bead Clincher, folding TPI60Compound-Protection Sidewall Tubeless Compatible Yes Intended Use Cross-country, gravel, light trail Approximate Weight660g | Surly | Knard 700 X 41 Tire | Black | Tubeless, 60Tpi, 700 X 41, Folding