Panaracer GRAVELKING SK Tire 700C X 50 Tubeless Folding Black/BrownLooking for a tire that's more aggressive than the mixte tread GravelKing? The GravelKing Sk might just be the tire you need for the more hardcore roads. Aggressive knobs, ZSG Natural rubber compound, puncture protection breaker and AX ? special low rolling resistance casing make the Gravelking a go anywhere tire. And tubeless compatible up to 60 PSI! Ideal for gravel, dirt, and rough payment Available in Black Tread and Black or Brown Wall Colors