Schwalbe AV Tube 7XS (20") 20 × 0.9–1.0

Schwalbe standard bicycle inner tube no. 7XS. For bicylce tires in 20" inch (ETRTO 23→25-451). Retains air for an above-average length of time. Thanks to the best material quality and uniform wall thickness. Maximum reliability that has proven itself millions of times over.