WTB Riddler TCS Light/Fast Rolling 700c Gravel Tire Perfect for gravel exploration or drop bar touring Tread pattern rolls incredibly fast plus provides bite in corner TCS (Tubeless Compatible System) technology provides bead that's UST compliant and optimized for use with sealant Light casing is supple, tubeless-compatible, plus ensures low rotational weight Dual DNA rubber compound - firmer in the center, softer on the side knobs - for speed and durability