Zipp Goodyear VectorR NSW Road Tire 700x30C Folding Tubeless Ready Dynamic:UHP R:Shield BlackOptimized to be fastest with 353 NSW, and size matched to the rim dimensions for top aerodynamic efficiency. The tire has the same intended use as the wheellong road rides, especially in the mountains The tires lightweight casing enhances climbing speed tread pattern cornering grip. The Goodyear VectorR Z30 NSW features a casing and tread sized for a wide rim profile, creating a large volume for speed on smooth pav roads at lower tire pressures.