Schwalbe AV Tube 7XXL (20") 20 × 3.5–4.8

Schwalbe standard bicycle inner tube no. 7XXL. For bicycle tires in size 20" inch (ETRTO 90→120-406). The Schwalbe inner tube especially for fat bikes, with huge volume. For fatbike tires up to 120 mm wide. 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.