The Semi Slick Plus features an all new tread pattern consisting of a smooth diamond pattern centre with more aggressive side lugs. This tread pattern allows the rider to keep speed going into corners and maintain control throughout any transition a gravel ride could present. The GravelKing SS incorporates a supple 120 TPI casing with a nylon puncture resistant belt and Panaracer’s proprietary ZSG (Zero Slip Grip) compound. FEATURES Tubeless Compatible (Up to 60psi) ZSG Advance Compound AX-Alpha Advanced Alpha Extra Cord Anti-Flat Casing Bead: Folding Sizes: 700 x 32c / 700 x 35c / 700 x 38c / 700 x 43c / 27.5 x 1.9 (48c) Weight: 370g / 420g / 450g / 530g / 590g Colours: Black/Black, Black/Brown Made in Japan TECHNOLOGIES: NEW ProTite Shield PlusUltra-strong reinforcing material is wrapped around the whole tyre with nylon taffeta lining the treads to provide added protection against side cuts as well as punctures from dented rims or piercings. ZSG 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.