The Panaracer GravelKing EXT has an aggressive tread pattern that Panaracer has already used on the CycloCross CG-CX tyre. This means that the GravelKing EXT offers, in addition to the proven features, sufficient grip and control even on the most demanding Gravel tracks. ZSG (Zero Slip Grip) Natural CompoundThis compound has the same 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-α (Advanced Extra Alpha Cord)AX 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. Tubeless Compatible (TLC)Tires with the "Tubeless compatible" feature can optionally be driven without a tube sealing milk.