All of Schwalbes inner tubes are 100% recyclable and are inflated for 24 hours and tested for leaks at the factory before being shipped. Schwalbe inner tubes all have a very high butyl content and a high material purity. AV3 16" Inner Tubes: * Weight: 115g * 16" x 1.75" - 2.5" * Schrader * 40mm Valve
