Sunlite Thorn Resistant Presta Valve Tubes, 700 x 25 - 28 (27 x 1.125 - 1.25") / 32mm, Black Sunlite - Thorn Resistant Presta Valve Tube 700x25-28 (27x1-1/8-1-1/4) Sunlite 27" Thorn Resistant Presta Valve Tube 700x25-28 (27x1- Weight 1.05 lb. (0.48 kg) Model Number 550U41Q8