Schwalbe Nobby Nic Tire - 29 x 2.4 Tubeless Folding Black/Bronze Evolution Line Super Ground Addix SpeedGrip. 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.Uses an extremely elastic tread base for very low rolling resistance and a stable center and extra shoulder grip for performance and cornering Utilizes the super-fast carcass of the Racing Ralph TECH SPECS Color Black/Bronze Defined Color Brown Designed for ebike Yes Flat Protection Tread ISO Diameter 622 / Road / 29" ISO Width (mm) 62 Labeled Size 29 x 2.4 PSI 50 TPI 67 Tire Bead Folding Tire Diameter 29" Tire Intended Use Mountain Tire Type Tubeless Ready Clincher Weight 850