Specialized's Roller Sport is an aggressive tire built for super-fun riding. Its knobby tread offers confident handling in a wide variety of terrain, while the large casing provides a smooth, stable ride. Plus, it features stiffened sidewalls and Specialized's Flak Jacket technology for enhanced flat protection.
Size: 20 x 2.125
Specialized's Flak Jacket is a tough Aramid/elastomer extrusion below the tread that reduces flats by up to 40%.