Panaracer: Looking for a tyre that's more aggressive than the mixed-tread GravelKing or Semi-Slick? The GravelKing SK might just be the tyre you need for the more hard-core roads.Aggressive knobs, ZSG Natural rubber compound, puncture protection breaker and AX-α special low rolling resistance casing make the GravelKing SK a true go-anywhere tyre. Tubeless compatible when running pressures up to 60psi, the GK SK gives assurance in all conditions.This colour edition range of GravelKings is available for a limited time only.TECHNOLOGIESZSG Natural CompoundOur own very low rolling resistance as the premium compound. Its enhanced wear resistance makes it perfect for a long lasting training tire with an excellent ride.AX-Alpha - Advanced Alpha Extra CordAX technology uses extremely narrow cord which is weaved at a super high density into the casing for lightness and flexibility. This increased density improves resistance to cuts and abrasions.Anti-Flat CasingAnti-puncture reinforcement throughout the tire strengthens resistance to cuts and pinch flats. FEATURESTubeless Compatible (Up to 60psi)ZSG Advance CompoundAX-Alpha Advanced Alpha Extra CordAnti-Flat CasingBead: FoldingWeight: 330g / 430g