Built for speed with exceptional rolling efficiency on hardpack gravel and pavement- Slick centerline paired with low-profile transition and shoulder knobs for predictable cornering- Patent pending aerodynamic technology helps conserve energyTCS LIGHT FAST ROLLING SG2: Weight-saving 120tpi casing with the added reliability of SG2 puncture protection throughout the entirety of the tire.- DUAL DNA RUBBER COMPOUND: The perfect mix of efficiency, traction and durability. The centerline tread features a firmer rubber compound that boasts faster rolling and increased durability, while the side knobs are composed of softer, slower-rebounding rubber that improves control and grip.