The Schwalbe Nobby Nic combines Triple compound and the super-fast carcass used by the Racing Ralph providing divine grip and speed for the trails. Incorporates Evo-Carcass, PaceStar Triple Compound and SnakeSkinUses an extremely elastic tread base for very low rolling resistance, and a stable center and extra shoulder grip for performance and corneringUtilizes the super-fast carcass of the Racing RalphSchwalbe"s tubeless ready is a specifically shaped and coated tire bead. This bead seats quickly on the rim and provides safer seating Item SpecificationsTire BeadFoldingISO Diameter622 / road / 29"ISO Width54mmLabeled Size2.25Color Tread/SideBlackTire TypeClincherTire Diameter29"Intended UseMountainDefined ColorBlack