Syerra has been developed to satisfy the needs of the emerging Down Country segment, raising the limit of what a XC tire can do. Vittoria engineers combined in a single product Speed and Rolling Performance – typical features of the XC segment – together with High Grip and Resistance – traits of the Trail Segment. The result is a light and fast product which allow to have fun also when tackling burlier descents and gnarlier terrain. Approved for use with hookless rims SPECS : Labeled Size: 29 x 2.4 ISO Width (mm): 60 ISO Diameter: 622 / Road / 29" Defined Color: Black Tire Type: Tubeless Ready Clincher Tire Diameter: 29" Tire Bead: Folding