The WTB Riddler 700c TCS Light SG2 Gravel TireThe WTB Riddler 700c Tire blends a fast-rolling center with a taller side knobs to balance speed and cornering confidence for dirt and gravel riding. Dual DNA rubber means a harder speedier center compound combined with a softer edge compound that allows for increased cornering traction. Now with SG2 puncture protection and a 120tpi casing these tires are more durable than ever.