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. AV1 12" Inner Tubes. * Weight: 80g * 12" x 1.75" – 2.25" * SCT001A – 45deg angle Valve * Schraeder * 40mm Valve
