Teravail Standard 700c Presta Tube Keeping You Rolling Whether you're just riding a few miles to work or you're going for an all-day adventure, you should carry a couple of spare tubes with you just in case. Always being prepared is the best way to prevent a ride from coming to an abrupt end. These Teravail Standard 700c Presta Tubes (screw top) are offered in a number of sizes for road, touring, and cyclocross applications. Valve stems come in different lengths to accommodate different rim profiles. 32, 48, 60, and 80mm valve Presta (French) Valve Removable valve core | Teravail | Standard 700C Presta Tube 700C X 28-32Mm, 60Mm Valve