The Schwalbe Rock Razor Evo Super Trail TLE ADDIX SpeedGrip Tyre is semi-slick with massive shoulder studs for good cornering grip. Used on very fast and dry trails. Low rolling resistance and light weight. Principally for use on the rear wheel.Schwalbe Rock Razor Evo Super Trail TLE ADDIX SpeedGrip Tyre FeaturesFlat studs with small gaps for optimal rolling resistanceGrippy edges that offer ample traction on hard groundMassive shoulder studs for good cornering grip