From the concrete at Kissena to the boards in Boulder, the Vittoria Pista CS Track Tire is your ticket to the high walls and higher speeds of track racing. A 220 TPI casing keeps the ride smooth and supple, while a specially formulated diamond tread is optimized for both indoor and outdoor tracks, so you"ll never be caught with the wrong tire at your next event. Product FeaturesType: tubularMaterial: [casing] 220 TPISize: 28 in x 22 mmBead: kevlarFoldable: Weight: 270 gRecommended Use: racing on concrete or wooden velodromesManufacturer Warranty: 1 year