Zipp Speed Weaponry Tangente Tire - Tubular Type: tubularMaterial: [casing] 290 tpi nylon; [tread] Durometer rubberSize: 700 c x 21 mm, 700 c x 23 mmBead: Foldable: noWeight: 291 gRecommended Use: road cycling, training, racingManufacturer Warranty: 2 years