Schwalbe AV4 Tube 18 inch
The Schwalbe AV4 tube fits the Strida Carbon Fiber Wheels. The stem fits the hole in the Strida Carbon Fiber wheels, the standard Strida 18 inch tube stem is large in diameter and will not fit the Carbon Wheels. The Schwalbe AV4 is a high quality tube that will fit all of the 18 inch tires that we stock. For more information here is a link to the Schwalbe’s Website.